Determining if a strange carved wooden tablet holds the secrets of a lost civilization; examining if a machine can measure beauty.

Cameras capture an enormous fireball erupting along with a series of explosions in a North Korean border town; experts investigate and discover a cramped and overcrowded housing project linked to a deadly propane tank disaster.

The remnants of an abandoned rocket testing facility lies forgotten in the marsh of the Florida Everglades; experts investigate a derelict industrial complex that was critical in the birth of space exploration.

Contractor Mike Holmes joins forces with his children, Michael and Sherry, to continue his legacy of making it right and helping homeowners in need.

Following the stories of storm chasers who've had to run for their lives and survivors of some of the deadliest recent tornadoes.

The inspector missed something important when inspecting the fireplaces.

Join the LA fire department as it rescues wildfire-trapped residents, then face the fury of the biggest tornado to hit the US in 60 years. Brave extreme elements with daredevil skydivers in Antarctica and see a Texas microburst cause carnage.

A mysterious object is raised from the depths of the ocean; a stranded speedboat; an elite crew works to salvage America's biggest shipwreck before hurricane season.

Investigating a hidden reno that threatens a family's health and safety; Mike assesses Kris and Dave's basement playroom, where a closed-in cold cellar offers the perfect breeding ground for mould; the crew send this fungus packing.

Kick off construction with Todd and his wife, Rebecca, who face challenges on Day 1 when a windstorm blocks the road. See what architect Monty Wood and designer Ami McKay have in store for this high-tech A-frame as they begin laying the foundation.

Paid programming.

New York City is under attack as Hurricanes Ida and Ian unleash their fury on innocent people; seeing how the latest science and technology can protect New York City's 8 million residents before everything gets swept away by ferocious superstorms.

Tragedy strikes in Puerto Rico as an explosion takes down a popular shoe shop.

Encounter kids' drawings on the walls in Pompeii that expose the city's violent gladiatorial past. Check out a mythical sculpture unearthed by an Indian tsunami, a 12-century temple in quake-prone Mexico, and a sunken ship in Utah's Great Salt Lake.

Alaskans scurry to find precious resources in a constantly changing winter landscape.

House-decimating floods in British Columbia; speeding away from a lethal cliff collapse with boaters vacationing in Brazil; two men ditch their car during a hurricane; an Oregon farm razed by a wildfire.

A complex built to entomb British spies and a once ingenious military facility; the imprint of ancient culture around a deserted Italian town; the shell of a highly classified Soviet weapons factory hidden in an Estonian forest.

The history of a stretch of concrete known as Hitler's Bridge; the highest bridge in the world collapses.

New York City is under attack as Hurricanes Ida and Ian unleash their fury on innocent people; seeing how the latest science and technology can protect New York City's 8 million residents before everything gets swept away by ferocious superstorms.

Explore evidence that ties a meteor strike to a Biblical tale. Delve into a treasure-filled tunnel revealed by a sinkhole in Mexico, a medieval cave shrine exposed during a UK landslide, and famine warnings brought to light by a severe drought.

Hurricane Sally makes landfall along Alabama's Gulf Coast, the first tropical cyclone to do so since 2004; intensifying to a Category 2 storm and turning east just prior to landfall, Sally catches many residents along the panhandle by surprise.

Trace the chain of events that led to a deadly explosion on the Deepwater Horizon rig and unleashed the largest marine oil spill in history; see the failed part that caused the NASA Challenger Space Shuttle to explode seconds after liftoff.

Explore evidence that ties a meteor strike to a Biblical tale. Delve into a treasure-filled tunnel revealed by a sinkhole in Mexico, a medieval cave shrine exposed during a UK landslide, and famine warnings brought to light by a severe drought.

Hurricane Sally makes landfall along Alabama's Gulf Coast, the first tropical cyclone to do so since 2004; intensifying to a Category 2 storm and turning east just prior to landfall, Sally catches many residents along the panhandle by surprise.

Trace the chain of events that led to a deadly explosion on the Deepwater Horizon rig and unleashed the largest marine oil spill in history; see the failed part that caused the NASA Challenger Space Shuttle to explode seconds after liftoff.

Tragedy strikes in Puerto Rico as an explosion takes down a popular shoe shop.

The history of a stretch of concrete known as Hitler's Bridge; the highest bridge in the world collapses.

Get a birds-eye view of a mysterious, massive explosion in China and a quickly melting glacier on Earths iciest continent. Investigate a strange orange haze enveloping the Big Apple, then float over a toxic, too-hot-to-handle lake in New Zealand.

Threatening blue lights bombard a famous resort town, evoking the apocalypse, a nuclear meltdown could be behind an ominous blazing beam of light and supersized, underground crystals appear out of this world.

Going under one of the world's largest lakes for a multi-million dollar tunnel boring project in one of the fastest growing cities on Earth.

Tammy and Jason hire a contractor to build a cement staircase.

Dr. Emma sets off on a road trip to Siksika Nation to help stray dogs get healthy and find their forever homes; in Saskatoon, Dr. Allison examines a worrying lump on an older dog with a big personality.

Dr. Cori taps into her wealth of experience to bring Ranger, the ailing cat, back from a life-or-death situation; in Saskatoon, a lost kitty gets a clean bill of health and finds a loving home with one of Dr. Allison's team members.

Counting down to the annual deer release, which could get shut down if a government inspection doesn't go according to plan; the staff scramble to help a hawk with a broken beak and vaccinate the raccoon unit against a potentially deadly virus.

Caleb Musgrave teaches the Adventurers proper shelter construction.

Attic repairs; repairing windows.

When tiles begin to crack after a renovation the contractor finds a dangerous surprise.

Paid programming.

Kick off construction with Todd and his wife, Rebecca, who face challenges on Day 1 when a windstorm blocks the road. See what architect Monty Wood and designer Ami McKay have in store for this high-tech A-frame as they begin laying the foundation.

Argentina and Paolo are searching for lakefront property that can accommodate their blended family; they visit three different properties to choose from.

Going under one of the world's largest lakes for a multi-million dollar tunnel boring project in one of the fastest growing cities on Earth.

Will refashions a pair of wooden Turkish bath clogs; Brenton revives two trophies for a son who inherited his dad's love of motorcycle racing; Julie and Amanda give some love to emotional support bear Oldie.

At the apex of winter, a lack of snowfall in the Arctic makes basic tasks more difficult.

Flying on one of the biggest helicopters on Earth, on a quest to pull valuable timber from the forest; huge repairs threaten to bring this mission to a halt.

Hurricane Sally makes landfall along Alabama's Gulf Coast, the first tropical cyclone to do so since 2004; intensifying to a Category 2 storm and turning east just prior to landfall, Sally catches many residents along the panhandle by surprise.

Once-great triumphs of marine engineering now left to rust include a ship graveyard in Maryland.

Retired couple Janet and Tom search for a lakefront property to enjoy fishing, one of their favorite pastimes. Their hunt leads them to three homes, all with unique amenities.

Empty nesters Froy and Lori are searching for a larger vacation home to accommodate their extended family; they visit a spacious rustic home with a gourmet kitchen and a three-slip dock, a 6000 square foot luxury log home with a hot tub waterfall feature, and a modern home with a temperature-controlled wine display and waterfront views.

Feel the excitement as the team releases a pair of rehabbed grey seals just in time to welcome another orphaned duo. Cope with an early spring baby boom and watch Hope call in the big guns when a Canada goose shows up covered in porcupine quills.

Dr. Allison's clinic is full of nerves and worry as she and her staff bring in their own animals for vet care; Dr. Emma picks up some tips for working with small companion animals from Calgary's top exotic vet specialist.

Dr. Cori does emergency surgery on Bijoux, a tiny shih tzu puppy in a life-or-death situation; Dr. Allison brings her veterinarian skills to help a small northern Saskatchewan Cree community with the health of their pets.

The Holmes team surprises superfan Michael, who has autism, with news that he's part of the crew; his family gets a life-changing upgrade that will open up their tired bungalow and give them more room for living.

Feel the excitement as the team releases a pair of rehabbed grey seals just in time to welcome another orphaned duo. Cope with an early spring baby boom and watch Hope call in the big guns when a Canada goose shows up covered in porcupine quills.

Dr. Allison's clinic is full of nerves and worry as she and her staff bring in their own animals for vet care; Dr. Emma picks up some tips for working with small companion animals from Calgary's top exotic vet specialist.

Dr. Cori does emergency surgery on Bijoux, a tiny shih tzu puppy in a life-or-death situation; Dr. Allison brings her veterinarian skills to help a small northern Saskatchewan Cree community with the health of their pets.

The Holmes team surprises superfan Michael, who has autism, with news that he's part of the crew; his family gets a life-changing upgrade that will open up their tired bungalow and give them more room for living.

Will refashions a pair of wooden Turkish bath clogs; Brenton revives two trophies for a son who inherited his dad's love of motorcycle racing; Julie and Amanda give some love to emotional support bear Oldie.

Once-great triumphs of marine engineering now left to rust include a ship graveyard in Maryland.

A lavish theater that once accommodated decades of fashionable entertainment is now mysteriously deserted in Cleveland; experts investigate and reveal a destructive performance that would lead to its eventual demise.

The Avenue of the Sphinxes has now been unearthed in the biggest excavation in Egyptian history; using cutting-edge CGI, investigators reveal the hidden secrets of the sphinxes.

Caleb Musgrave teaches the Adventurers proper shelter construction.

Braving the fast-moving rivers, the group paddles off the lake in search of natural salmon runs in the waterways; their efforts to corral the fish are more dangerous than they realized.

Olivia decides to turn her basement into a comfortable living space for her daughter and grandchildren.

Explore evidence that ties a meteor strike to a Biblical tale. Delve into a treasure-filled tunnel revealed by a sinkhole in Mexico, a medieval cave shrine exposed during a UK landslide, and famine warnings brought to light by a severe drought.

A series of dark, subterranean vaults lie hidden beneath the bustling streets of Edinburgh, Scotland; experts investigate and uncover a vast network of tunnels and chambers that contain a history of opportunity, crime and destitution.

Braving the fast-moving rivers, the group paddles off the lake in search of natural salmon runs in the waterways; their efforts to corral the fish are more dangerous than they realized.

A court case forces repairs on a ceiling.

Mike Holmes fixes a floor by securing floor joists and adding braces.

Argentina and Paolo are searching for lakefront property that can accommodate their blended family; they visit three different properties to choose from.

Trace the chain of events that led to a deadly explosion on the Deepwater Horizon rig and unleashed the largest marine oil spill in history; see the failed part that caused the NASA Challenger Space Shuttle to explode seconds after liftoff.

The bizarre remains of an Old West mining town lie mysteriously deserted high in the mountains of Maggie Valley, N.C.; experts investigate an abandoned ghost town theme park that some local residents believe carries a curse.

Join the LA fire department as it rescues wildfire-trapped residents, then face the fury of the biggest tornado to hit the US in 60 years. Brave extreme elements with daredevil skydivers in Antarctica and see a Texas microburst cause carnage.

Alaskans learn new survival skills as winter loses its grip on the Arctic landscape.

Going on a journey across Lithuania on big trains packed to the brim as massive ships wait to collect their bounty and take it across the ocean.

Threatening blue lights bombard a famous resort town, evoking the apocalypse, a nuclear meltdown could be behind an ominous blazing beam of light and supersized, underground crystals appear out of this world.

A look at disused structures that used to be at the forefront of the world's power supply, including Budapest's Kelenfold Power Station and New York's Wardenclyffe Tower.

Hurricane Sally makes landfall along Alabama's Gulf Coast, the first tropical cyclone to do so since 2004; intensifying to a Category 2 storm and turning east just prior to landfall, Sally catches many residents along the panhandle by surprise.

Huge sand dunes bellow sinister sounds as loud as a jackhammer; a churning mud pot mysteriously goes on a rampage, destroying infrastructure; and a river, linked to a national tragedy, mysteriously vanishes.

Encounter kids' drawings on the walls in Pompeii that expose the city's violent gladiatorial past. Check out a mythical sculpture unearthed by an Indian tsunami, a 12-century temple in quake-prone Mexico, and a sunken ship in Utah's Great Salt Lake.

On Aug. 17, 2020, a series of lightning strikes ignite multiple fires around Napa Valley; fanned by intense winds, the fires rapidly intensify into the LNU Fire Complex.

Huge sand dunes bellow sinister sounds as loud as a jackhammer; a churning mud pot mysteriously goes on a rampage, destroying infrastructure; and a river, linked to a national tragedy, mysteriously vanishes.

Encounter kids' drawings on the walls in Pompeii that expose the city's violent gladiatorial past. Check out a mythical sculpture unearthed by an Indian tsunami, a 12-century temple in quake-prone Mexico, and a sunken ship in Utah's Great Salt Lake.

Join the LA fire department as it rescues wildfire-trapped residents, then face the fury of the biggest tornado to hit the US in 60 years. Brave extreme elements with daredevil skydivers in Antarctica and see a Texas microburst cause carnage.

Discover 10 perfectly preserved Byzantine-era crocodiles on the banks of the Nile. Untangle the puzzle of the Namib Desert's grass circles, locate the remnants of a lost foreign-ruled city in Egypt, and solve the riddle of Peru's Band of Holes.

A look at disused structures that used to be at the forefront of the world's power supply, including Budapest's Kelenfold Power Station and New York's Wardenclyffe Tower.

Threatening blue lights bombard a famous resort town, evoking the apocalypse, a nuclear meltdown could be behind an ominous blazing beam of light and supersized, underground crystals appear out of this world.

Get a birds-eye view of a mysterious, massive explosion in China and a quickly melting glacier on Earths iciest continent. Investigate a strange orange haze enveloping the Big Apple, then float over a toxic, too-hot-to-handle lake in New Zealand.

The bizarre remains of an Old West mining town lie mysteriously deserted high in the mountains of Maggie Valley, N.C.; experts investigate an abandoned ghost town theme park that some local residents believe carries a curse.

A contractor is hired to completely renovate a home.

A lavish theater that once accommodated decades of fashionable entertainment is now mysteriously deserted in Cleveland; experts investigate and reveal a destructive performance that would lead to its eventual demise.

The inside track on five of the greatest heists in history; these are not petty robberies, but high-stakes operations meticulously planned and audaciously executed, with a cast of colorful characters from the mastermind to the snitch.

Don bought a beautiful 120- year-old Victorian home and has decided to completely renovate the kitchen.

Paid programming.

Kick off construction with Todd and his wife, Rebecca, who face challenges on Day 1 when a windstorm blocks the road. See what architect Monty Wood and designer Ami McKay have in store for this high-tech A-frame as they begin laying the foundation.

Explore evidence that ties a meteor strike to a Biblical tale. Delve into a treasure-filled tunnel revealed by a sinkhole in Mexico, a medieval cave shrine exposed during a UK landslide, and famine warnings brought to light by a severe drought.

Get a birds-eye view of a mysterious, massive explosion in China and a quickly melting glacier on Earths iciest continent. Investigate a strange orange haze enveloping the Big Apple, then float over a toxic, too-hot-to-handle lake in New Zealand.

Threatening blue lights bombard a famous resort town, evoking the apocalypse, a nuclear meltdown could be behind an ominous blazing beam of light and supersized, underground crystals appear out of this world.

In the final days of winter, Alaskans use their time to prepare for what lies ahead.

A mission to haul hefty cargo across Switzerland to the Netherlands, going through four countries with critical repairs at every turn.

Join the LA fire department as it rescues wildfire-trapped residents, then face the fury of the biggest tornado to hit the US in 60 years. Brave extreme elements with daredevil skydivers in Antarctica and see a Texas microburst cause carnage.

A crumbling hill in the Peak District and dunes in California causes the closure of two roads; a route used by the French Resistance is closed in 2003.

Get a birds-eye view of a mysterious, massive explosion in China and a quickly melting glacier on Earths iciest continent. Investigate a strange orange haze enveloping the Big Apple, then float over a toxic, too-hot-to-handle lake in New Zealand.

Discussing the ten plagues of Egypt, detailed in the Bible, apparently sent by God to convince the Pharaoh to free the Israelites.

After an intense search for more tangible evidence Peter and Elroy choose a new direction; each artifact leads them deeper into a web of mysterious symbols and conspiracies.

Figuring out who's the creator of a 5,000-year-old carved stone object covered in markings; examining why people believed an electrocution device could cure them.

Discussing the ten plagues of Egypt, detailed in the Bible, apparently sent by God to convince the Pharaoh to free the Israelites.

After an intense search for more tangible evidence Peter and Elroy choose a new direction; each artifact leads them deeper into a web of mysterious symbols and conspiracies.

Cameras capture stunned pedestrians running for cover as droplets of fire begin to rain down on the streets of St. Petersburg, Russia; experts investigate a network of nearby tram lines and the effect of a sudden lightning storm.

A trip across Romania sees Jamie-Lee O'Donnell and Saoirse-Monica Jackson of "Derry Girls" trek from Bran Castle, the home of Dracula, through mountain passes and off-road tracks en route to the Danube.

A crumbling hill in the Peak District and dunes in California causes the closure of two roads; a route used by the French Resistance is closed in 2003.

Trace the chain of events that led to a deadly explosion on the Deepwater Horizon rig and unleashed the largest marine oil spill in history; see the failed part that caused the NASA Challenger Space Shuttle to explode seconds after liftoff.

Hurricane Sally makes landfall along Alabama's Gulf Coast, the first tropical cyclone to do so since 2004; intensifying to a Category 2 storm and turning east just prior to landfall, Sally catches many residents along the panhandle by surprise.

Get a birds-eye view of a mysterious, massive explosion in China and a quickly melting glacier on Earths iciest continent. Investigate a strange orange haze enveloping the Big Apple, then float over a toxic, too-hot-to-handle lake in New Zealand.

After paying a contractor almost the full amount, an eight-week contract turned into 15 months and the job was never completed.

The bizarre remains of an Old West mining town lie mysteriously deserted high in the mountains of Maggie Valley, N.C.; experts investigate an abandoned ghost town theme park that some local residents believe carries a curse.

Discover 10 perfectly preserved Byzantine-era crocodiles on the banks of the Nile. Untangle the puzzle of the Namib Desert's grass circles, locate the remnants of a lost foreign-ruled city in Egypt, and solve the riddle of Peru's Band of Holes.

Ron and Jill hired contractors to undertake a huge renovation that essentially involved adding a second floor to a portion of their home.

A look at how having multiple witnesses to a crime can complicate the story, as many have their own accounts of what occurred.

Climbers make a shocking discovery when they encounter the remains of two human bodies high atop New Zealand's Mount Cook; after a forensic investigation, a decades-old mystery reignites that could rewrite mountaineering history.

Discover 10 perfectly preserved Byzantine-era crocodiles on the banks of the Nile. Untangle the puzzle of the Namib Desert's grass circles, locate the remnants of a lost foreign-ruled city in Egypt, and solve the riddle of Peru's Band of Holes.

Palmyra: pearl of the Syrian desert; experts return to the site and use CGI reconstruction to reveal the secrets of Palmyra's ancient engineers.

As the ice and snow melt across the Arctic, Alaskans take advantage of the warm season.

Going behind the scenes with the Panama Canal Railway; big track repairs, massive machines, and unrelenting deadlines.

Fearless Fred Flintoff attempts F1 Stock Car Racing; Chris Harris gets a call offering a Mercedes AMG One test drive.

An eerie graveyard of discarded ships lies half submerged along the banks of a deadly river in southern England; new discoveries uncover the secrets of how these marine monoliths came to be forgotten relics in their watery resting place.

Discover 10 perfectly preserved Byzantine-era crocodiles on the banks of the Nile. Untangle the puzzle of the Namib Desert's grass circles, locate the remnants of a lost foreign-ruled city in Egypt, and solve the riddle of Peru's Band of Holes.

An enormous fiery vortex in Redding, California, the island nation of Malta loses a natural treasure, a mysterious radioactive hotspot is discovered near Chernobyl, and an unknown force lays waste to a mountain forest in Italian Alps.

Huge sand dunes bellow sinister sounds as loud as a jackhammer; a churning mud pot mysteriously goes on a rampage, destroying infrastructure; and a river, linked to a national tragedy, mysteriously vanishes.

Climbers make a shocking discovery when they encounter the remains of two human bodies high atop New Zealand's Mount Cook; after a forensic investigation, a decades-old mystery reignites that could rewrite mountaineering history.

An enormous fiery vortex in Redding, California, the island nation of Malta loses a natural treasure, a mysterious radioactive hotspot is discovered near Chernobyl, and an unknown force lays waste to a mountain forest in Italian Alps.

Huge sand dunes bellow sinister sounds as loud as a jackhammer; a churning mud pot mysteriously goes on a rampage, destroying infrastructure; and a river, linked to a national tragedy, mysteriously vanishes.

Climbers make a shocking discovery when they encounter the remains of two human bodies high atop New Zealand's Mount Cook; after a forensic investigation, a decades-old mystery reignites that could rewrite mountaineering history.

Cameras capture stunned pedestrians running for cover as droplets of fire begin to rain down on the streets of St. Petersburg, Russia; experts investigate a network of nearby tram lines and the effect of a sudden lightning storm.

An eerie graveyard of discarded ships lies half submerged along the banks of a deadly river in southern England; new discoveries uncover the secrets of how these marine monoliths came to be forgotten relics in their watery resting place.

After an intense search for more tangible evidence Peter and Elroy choose a new direction; each artifact leads them deeper into a web of mysterious symbols and conspiracies.

The bizarre remains of an Old West mining town lie mysteriously deserted high in the mountains of Maggie Valley, N.C.; experts investigate an abandoned ghost town theme park that some local residents believe carries a curse.

Hurricane Sally makes landfall along Alabama's Gulf Coast, the first tropical cyclone to do so since 2004; intensifying to a Category 2 storm and turning east just prior to landfall, Sally catches many residents along the panhandle by surprise.

Dr. Allison's clinic is full of nerves and worry as she and her staff bring in their own animals for vet care; Dr. Emma picks up some tips for working with small companion animals from Calgary's top exotic vet specialist.

Dr. Cori does emergency surgery on Bijoux, a tiny shih tzu puppy in a life-or-death situation; Dr. Allison brings her veterinarian skills to help a small northern Saskatchewan Cree community with the health of their pets.

A cat named Louis requires major leg surgery, a Kunekune pig named Crumbfoot needs emergency X-rays, and Savannah heads out to conduct a wild horse study, looking at how horses treat their own parasites through a process known as Zoopharmacognosy.

Kick off construction with Todd and his wife, Rebecca, who face challenges on Day 1 when a windstorm blocks the road. See what architect Monty Wood and designer Ami McKay have in store for this high-tech A-frame as they begin laying the foundation.

The sprawling city of Persepolis was capital to the first imperial civilization that conquered most of the known ancient world; experts use advanced forensic archaeology to reveal the secrets behind Persia's mysterious and dominating metropolis.

Celebrate as a newly arrived trio of sisters teaches Winston about friendship.

A trip across Romania sees Jamie-Lee O'Donnell and Saoirse-Monica Jackson of "Derry Girls" trek from Bran Castle, the home of Dracula, through mountain passes and off-road tracks en route to the Danube.

Follows the trail of an unfolding catastrophe in Israel and a secret marine facility in the Baltic Sea; a smugglers' hangout in San Francisco Bay, a 19th-century British whale oil refinery, and an ancient temple linked to a Chinese warrior.

Celebrate as a newly arrived trio of sisters teaches Winston about friendship.

Dr. Allison's clinic is full of nerves and worry as she and her staff bring in their own animals for vet care; Dr. Emma picks up some tips for working with small companion animals from Calgary's top exotic vet specialist.

Dr. Cori does emergency surgery on Bijoux, a tiny shih tzu puppy in a life-or-death situation; Dr. Allison brings her veterinarian skills to help a small northern Saskatchewan Cree community with the health of their pets.

Feel the excitement as the team releases a pair of rehabbed grey seals just in time to welcome another orphaned duo. Cope with an early spring baby boom and watch Hope call in the big guns when a Canada goose shows up covered in porcupine quills.

Hurricane Sally makes landfall along Alabama's Gulf Coast, the first tropical cyclone to do so since 2004; intensifying to a Category 2 storm and turning east just prior to landfall, Sally catches many residents along the panhandle by surprise.

Huge sand dunes bellow sinister sounds as loud as a jackhammer; a churning mud pot mysteriously goes on a rampage, destroying infrastructure; and a river, linked to a national tragedy, mysteriously vanishes.

A complex built to entomb British spies and a once ingenious military facility; the imprint of ancient culture around a deserted Italian town; the shell of a highly classified Soviet weapons factory hidden in an Estonian forest.

Figuring out who's the creator of a 5,000-year-old carved stone object covered in markings; examining why people believed an electrocution device could cure them.

Hurricane Sally makes landfall along Alabama's Gulf Coast, the first tropical cyclone to do so since 2004; intensifying to a Category 2 storm and turning east just prior to landfall, Sally catches many residents along the panhandle by surprise.

On Aug. 17, 2020, a series of lightning strikes ignite multiple fires around Napa Valley; fanned by intense winds, the fires rapidly intensify into the LNU Fire Complex.

A lavish theater that once accommodated decades of fashionable entertainment is now mysteriously deserted in Cleveland; experts investigate and reveal a destructive performance that would lead to its eventual demise.

Explore a Louisiana military base that helped save the world, then descend into a basement filled with Prohibition-era secrets; look around a bizarre castle in the Colorado mountains and a ruined Pennsylvania resort that was a Union stronghold.

Fearless Fred Flintoff attempts F1 Stock Car Racing; Chris Harris gets a call offering a Mercedes AMG One test drive.

The sprawling city of Persepolis was capital to the first imperial civilization that conquered most of the known ancient world; experts use advanced forensic archaeology to reveal the secrets behind Persia's mysterious and dominating metropolis.

Explore evidence that ties a meteor strike to a Biblical tale. Delve into a treasure-filled tunnel revealed by a sinkhole in Mexico, a medieval cave shrine exposed during a UK landslide, and famine warnings brought to light by a severe drought.

Follows the trail of an unfolding catastrophe in Israel and a secret marine facility in the Baltic Sea; a smugglers' hangout in San Francisco Bay, a 19th-century British whale oil refinery, and an ancient temple linked to a Chinese warrior.

Join the LA fire department as it rescues wildfire-trapped residents, then face the fury of the biggest tornado to hit the US in 60 years. Brave extreme elements with daredevil skydivers in Antarctica and see a Texas microburst cause carnage.

Feel the excitement as the team releases a pair of rehabbed grey seals just in time to welcome another orphaned duo. Cope with an early spring baby boom and watch Hope call in the big guns when a Canada goose shows up covered in porcupine quills.

Mike Holmes fixes a floor by securing floor joists and adding braces.

Young professionals Jack and Laura have sold their home in the city and are searching for a lakeside escape; the first home on their search is a beautiful rustic home; the second home has an open-concept kitchen; the third home have a secret door.

A lavish theater that once accommodated decades of fashionable entertainment is now mysteriously deserted in Cleveland; experts investigate and reveal a destructive performance that would lead to its eventual demise.

Palmyra: pearl of the Syrian desert; experts return to the site and use CGI reconstruction to reveal the secrets of Palmyra's ancient engineers.

Join the LA fire department as it rescues wildfire-trapped residents, then face the fury of the biggest tornado to hit the US in 60 years. Brave extreme elements with daredevil skydivers in Antarctica and see a Texas microburst cause carnage.

Discussing the ten plagues of Egypt, detailed in the Bible, apparently sent by God to convince the Pharaoh to free the Israelites.

After an intense search for more tangible evidence Peter and Elroy choose a new direction; each artifact leads them deeper into a web of mysterious symbols and conspiracies.

Cameras capture stunned pedestrians running for cover as droplets of fire begin to rain down on the streets of St. Petersburg, Russia; experts investigate a network of nearby tram lines and the effect of a sudden lightning storm.

A series of dark, subterranean vaults lie hidden beneath the bustling streets of Edinburgh, Scotland; experts investigate and uncover a vast network of tunnels and chambers that contain a history of opportunity, crime and destitution.

The Holmes team surprises superfan Michael, who has autism, with news that he's part of the crew; his family gets a life-changing upgrade that will open up their tired bungalow and give them more room for living.

Explore evidence that ties a meteor strike to a Biblical tale. Delve into a treasure-filled tunnel revealed by a sinkhole in Mexico, a medieval cave shrine exposed during a UK landslide, and famine warnings brought to light by a severe drought.

Trace the chain of events that led to a deadly explosion on the Deepwater Horizon rig and unleashed the largest marine oil spill in history; see the failed part that caused the NASA Challenger Space Shuttle to explode seconds after liftoff.

A trip across Romania sees Jamie-Lee O'Donnell and Saoirse-Monica Jackson of "Derry Girls" trek from Bran Castle, the home of Dracula, through mountain passes and off-road tracks en route to the Danube.

Touring a Miami suburb that began as a dream and became a nightmare; visiting a glitzy Beirut high-rise consumed by hate and fear; learning why armed raiders targeted an English pirate vessel.

As winter turns to spring, Alaskans must seize the warming days.

Scattered across the United States are abandoned structures, forgotten ruins of the past and monuments to a bygone era that reveal the secrets of a hidden America.

Sign off.

As winter turns to spring, Alaskans must seize the warming days.

Scattered across the United States are abandoned structures, forgotten ruins of the past and monuments to a bygone era that reveal the secrets of a hidden America.

Figuring out who's the creator of a 5,000-year-old carved stone object covered in markings; examining why people believed an electrocution device could cure them.

Cameras capture stunned pedestrians running for cover as droplets of fire begin to rain down on the streets of St. Petersburg, Russia; experts investigate a network of nearby tram lines and the effect of a sudden lightning storm.

A series of dark, subterranean vaults lie hidden beneath the bustling streets of Edinburgh, Scotland; experts investigate and uncover a vast network of tunnels and chambers that contain a history of opportunity, crime and destitution.

The Holmes team surprises superfan Michael, who has autism, with news that he's part of the crew; his family gets a life-changing upgrade that will open up their tired bungalow and give them more room for living.

An exploration of mysteries where people simply vanished into thin air, from the prisoners who escaped Alcatraz, to the disappearance of Amelia Earhart.

An exploration of mysterious cover-ups, including the crash at Roswell, the occurrences at Area 51, and the Dugway Proving Ground's experimentation with biochemicals.

New evidence from the Skinwalker Ranch; reports of teleportation in Montauk; strange activity on Mount Shasta.

Stories of ghost towns, including Pripyat and Hashima Island.

The U.S. gains information about space borders using unwanted battleship guns; a V2 rocket is developed from the remains of a secret Nazi base.

In Brooklyn Park, Minn., Jake and Lindsay want to buy an investment home, and they show their favorites to Mike who helps them see the good, the bad and the ugly in order to get the best house for their money.

Paid programming.

The West Coast is home to the San Andreas fault, stretching for almost a thousand miles beneath the feet of millions of Americans.

In New Jersey, a neighborhood is devastated by a massive factory explosion; a Christmas Eve tragedy in New Zealand, as a packed train crashes into a river; in the U.K., Liverpool's state-of-the-art new hospital building is plagued by problems.

Explore evidence that ties a meteor strike to a Biblical tale. Delve into a treasure-filled tunnel revealed by a sinkhole in Mexico, a medieval cave shrine exposed during a UK landslide, and famine warnings brought to light by a severe drought.

On March 3, 2020, a super cell makes it way across Kentucky and sets its sights on Tennessee; that night, 10 tornados ranging from EF0 to EF4 touched down in Tennessee, leaving approximately $1.6 billion in damage and taking 25 lives.

Venturing into the deep waters of the Caribbean Sea for high stakes repairs on one of the one of the world's largest open ocean fish farm operations.

Touring a Miami suburb that began as a dream and became a nightmare; visiting a glitzy Beirut high-rise consumed by hate and fear; learning why armed raiders targeted an English pirate vessel.

An eerie graveyard of discarded ships lies half submerged along the banks of a deadly river in southern England; new discoveries uncover the secrets of how these marine monoliths came to be forgotten relics in their watery resting place.

The West Coast is home to the San Andreas fault, stretching for almost a thousand miles beneath the feet of millions of Americans.

Encounter kids' drawings on the walls in Pompeii that expose the city's violent gladiatorial past. Check out a mythical sculpture unearthed by an Indian tsunami, a 12-century temple in quake-prone Mexico, and a sunken ship in Utah's Great Salt Lake.

On Aug. 17, 2020, a series of lightning strikes ignite multiple fires around Napa Valley; fanned by intense winds, the fires rapidly intensify into the LNU Fire Complex.

Trace the chain of events that led to a deadly explosion on the Deepwater Horizon rig and unleashed the largest marine oil spill in history; see the failed part that caused the NASA Challenger Space Shuttle to explode seconds after liftoff.

Encounter kids' drawings on the walls in Pompeii that expose the city's violent gladiatorial past. Check out a mythical sculpture unearthed by an Indian tsunami, a 12-century temple in quake-prone Mexico, and a sunken ship in Utah's Great Salt Lake.

On Aug. 17, 2020, a series of lightning strikes ignite multiple fires around Napa Valley; fanned by intense winds, the fires rapidly intensify into the LNU Fire Complex.

Trace the chain of events that led to a deadly explosion on the Deepwater Horizon rig and unleashed the largest marine oil spill in history; see the failed part that caused the NASA Challenger Space Shuttle to explode seconds after liftoff.

In New Jersey, a neighborhood is devastated by a massive factory explosion; a Christmas Eve tragedy in New Zealand, as a packed train crashes into a river; in the U.K., Liverpool's state-of-the-art new hospital building is plagued by problems.

An eerie graveyard of discarded ships lies half submerged along the banks of a deadly river in southern England; new discoveries uncover the secrets of how these marine monoliths came to be forgotten relics in their watery resting place.

An enormous fiery vortex in Redding, California, the island nation of Malta loses a natural treasure, a mysterious radioactive hotspot is discovered near Chernobyl, and an unknown force lays waste to a mountain forest in Italian Alps.

Huge sand dunes bellow sinister sounds as loud as a jackhammer; a churning mud pot mysteriously goes on a rampage, destroying infrastructure; and a river, linked to a national tragedy, mysteriously vanishes.

Counting down to the annual deer release, which could get shut down if a government inspection doesn't go according to plan; the staff scramble to help a hawk with a broken beak and vaccinate the raccoon unit against a potentially deadly virus.

Follow Hope Swinimer and her team as they rescue, treat, and release injured and orphaned wildlife.

Follow Hope Swinimer and her team as they rescue, treat, and release injured and orphaned wildlife.

Follow Hope Swinimer and her team as they rescue, treat, and release injured and orphaned wildlife.

A crumbling hill in the Peak District and dunes in California causes the closure of two roads; a route used by the French Resistance is closed in 2003.

In Florida, fun-loving Nicole and Tariq are ready to buy their first home, preferably with enough room for a future family; Mike tours Nicole and Tariq's chosen homes and teaches them how to spot what's good, what's fixable and what's unacceptable.

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Sweat it out as Todd and engineer Jim Mandelli bring the property's access road up to code. Fight the temptations of summer vacation as a heat dome settles over the A-frame site and a wildfire forces head carpenter Peter Conolly to evacuate his home.

Retired couple Janet and Tom search for a lakefront property to enjoy fishing, one of their favorite pastimes. Their hunt leads them to three homes, all with unique amenities.

Jeweller Erin takes on a career defining repair to a Victorian era mourning pendant. Malcolm arrives seeking the help of horologist Andrew to secretly repair his father's clock. Clare and her son have brought a broken trainset to electrical technician Paul.

Scoping out a family's vintage hi-fi, an odd lighter and a well-travelled saddle.

Zoom in on some otherworldly sights. Spot a giant glacier on the Red Planet, let the milky seas off the coast of Java bathe your vision, ponder a huge hexagon floating above Saturn, and take a spin around a doughnut-shaped lake in Saskatchewan.

Going under one of the world's largest lakes for a multi-million dollar tunnel boring project in one of the fastest growing cities on Earth.

On Aug. 17, 2020, a series of lightning strikes ignite multiple fires around Napa Valley; fanned by intense winds, the fires rapidly intensify into the LNU Fire Complex.

The decaying remains of a lost military base and the remnants of a forgotten Nevada settlement are now barren wastelands; experts investigate the secrets behind these desert landscapes to uncover how they were built and why they were abandoned.

Empty nesters Carlo and Cat are looking for a home with amazing lake views, a large kitchen, and space for their dogs; on the hunt for their dream lakefront property, they first view a modern farmhouse with a large kitchen, a games room, a wine cellar and a boathouse; the second house they view is a contemporary home with a chef's kitchen, sauna and a descending trail to the lake; the last home on their tour is a 5-bedroom ranch-style home with lake views, a wine cellar and a movie theater.

Joseph and Natalie are searching for a lakefront home for their active family; they are looking for a house with easy water access for the kids and a gourmet kitchen for themselves.

Follow Hope Swinimer and her team as they rescue, treat, and release injured and orphaned wildlife.

Dr. Emma takes on her first rabbit surgery and tackles her fear of rodents; Dr. Allison and the team realize Callie the dog has more than a sore tooth when a routine dental reveals bigger problems below the surface.

Dr. Cori's team is busy when they find a mysterious scar on a new shop cat and assist a puppy who was hurt after leaping from a car. Dr. Allison discovers an infection in a dog but is less confident in her dancing abilities as she learns to jig.

Dealing with toxic fallout after a hot real estate market forces Jason and Alisha to buy a house without getting a home inspection; the Holmes team transforms a moldy, radon-filled eyesore into a cozy, healthy place to raise a family.

Follow Hope Swinimer and her team as they rescue, treat, and release injured and orphaned wildlife.

Dr. Emma takes on her first rabbit surgery and tackles her fear of rodents; Dr. Allison and the team realize Callie the dog has more than a sore tooth when a routine dental reveals bigger problems below the surface.

Dr. Cori's team is busy when they find a mysterious scar on a new shop cat and assist a puppy who was hurt after leaping from a car. Dr. Allison discovers an infection in a dog but is less confident in her dancing abilities as she learns to jig.

Dealing with toxic fallout after a hot real estate market forces Jason and Alisha to buy a house without getting a home inspection; the Holmes team transforms a moldy, radon-filled eyesore into a cozy, healthy place to raise a family.

Scoping out a family's vintage hi-fi, an odd lighter and a well-travelled saddle.

The decaying remains of a lost military base and the remnants of a forgotten Nevada settlement are now barren wastelands; experts investigate the secrets behind these desert landscapes to uncover how they were built and why they were abandoned.

An eerie castle with a supernatural attraction stands derelict in the dense forests of the Czech Republic; experts investigate and uncover legends of a concealed gateway to hell and links to horrific Nazi Germany occult experimentation.

The Dendera Temple is one of the best-preserved temples in all of Egypt; experts decipher its mystifying zodiac images and uncover the ceremonial events that took place at this sacred site, and stunning CGI rebuilds this grand complex in its prime.

Seven American engineering marvels are among the modern wonders of United States; now, investigators use hidden records to decode and reveal the mysteries behind these historic American icons.

"Queensland Australia is shaken by the most devastating flood in its history; in Kansas, two storm chasers track a terrifying twister; a base jumper gets stranded in freezing temperatures in Iceland; a destructive hail storm pummels Texas.

Opulent remains in a still-active no man's land; two moldering bastions with a hopeful tale; a frozen shell built on a burning passion; a mountainside refuge that God allegedly revealed to the world.

Scramble as the staff tries to find a place for each of the orphaned skunks, raccoons, and groundhogs that are streaming through the rehab's doors. Then deal with the deadly side of spring as the team tries to save a hare wounded by a weed whacker.

Observe a pair of white, piebald fawns that pose a big rehab challenge. Check out an albino skunk displaced by flash floods, see Dr. Mikaela race to save a parasite-infected chipmunk, and monitor a groundhog fighting for its life after a dog attack.

Trace the chain of events that led to a deadly explosion on the Deepwater Horizon rig and unleashed the largest marine oil spill in history; see the failed part that caused the NASA Challenger Space Shuttle to explode seconds after liftoff.

A legendary U.S. Naval war vessel now stands as a monument to space exploration in Alameda, Calif.; experts reveal how a formidable WWII aircraft carrier served a vital role in historic Apollo spaceflight recovery missions.

"Queensland Australia is shaken by the most devastating flood in its history; in Kansas, two storm chasers track a terrifying twister; a base jumper gets stranded in freezing temperatures in Iceland; a destructive hail storm pummels Texas.

Explore strongholds abandoned by their architects. Look at a lost city in the Amazon jungle, see a desert fortress made by humanity's most notorious empire, explore a city of identical castles, and examine a Greek isle's bloody history from the air.

A deadly explosion strikes at the heart of a small Texas town and leaves a community in ruins; experts use the latest science to investigate and uncover a nearby fertilizer plant containing volatile chemicals poised for disaster.

Huge sand dunes bellow sinister sounds as loud as a jackhammer; a churning mud pot mysteriously goes on a rampage, destroying infrastructure; and a river, linked to a national tragedy, mysteriously vanishes.

A secret Russian military base in the Gobi Desert; a strange complex in an American wasteland; a relic high atop a mountain.

On Aug. 17, 2020, a series of lightning strikes ignite multiple fires around Napa Valley; fanned by intense winds, the fires rapidly intensify into the LNU Fire Complex.