Exploring the dark art of spy-craft, from the frankenkitty to the umbrella gun; revealing the deadliest spy weapons deployed to gather information and assassinate enemies.

Located in the heart of London on the River Thames, the Tower of London's reputation for torture and beheadings fuels nightmares; originally built as a fortress by William the Conqueror in 1078, it becomes a prison in 1101.

Within the first forty years of operation, the Soviet Gulag system imprisons at least 18 million people and kills more than one and a half million; three tales of the fight for survival.

Whitey Bulger's notoriously violent and untouchable Winter Hill Gang are the kings of Boston's underworld, until a secret alliance comes to light.

When John Gotti, a capo from the Bronx, becomes fed up with the greed of his boss, Paul Castellano, he orchestrates a mob hit; rising to power as the new don of the Gambino family, Gotti's reign draws the scrutiny of the FBI.

For the first time ever, four bladesmiths use high carbon steel to forge a hatchet; two finalists have just five days to create an ancient Indian weapon used to both stab and slice.

Just ahead of the Season 12 premiere, Alex Lagina and Jack Begley give Matty Blake a taste of the thrilling discoveries that were made during this year's search for the Oak Island treasure.

After a flood in the garden shaft, Rick, Marty and the fellowship return to Oak Island with renewed confidence; discovering a never before known shaft, which may finally lead them directly to the Money Pit.

David heads off to England to check out a royal barn; a dying man reveals his last wish.

The Salvage team explore the historic mining town of Cobalt where they uncover a trove of memorabilia, including a massive 1915 Woolworth's sign and vintage jukeboxes.

The Pickers come across vintage hockey seats autographed by Guy Lafleur; uninvited sellers create a buying free-for-all at an old Quebec bar.

David heads off to England to check out a royal barn; a dying man reveals his last wish.

The Salvage team explore the historic mining town of Cobalt where they uncover a trove of memorabilia, including a massive 1915 Woolworth's sign and vintage jukeboxes.

The Pickers come across vintage hockey seats autographed by Guy Lafleur; uninvited sellers create a buying free-for-all at an old Quebec bar.

Four competitors must forge weld blades for friction folders from tiny cubes of steel, then two smiths will return home where they will forge a German Zweihänder.

Andy and Paul return to a Colorado cattle ranch that has had 16 mutilations over the last 25 years and features a bridge that may contain a dimensional portal, uncovering scientific evidence that ties directly to Skinwalker Ranch.

In 1746, a mysterious ship's log suggests that a French admiral linked to the Knights Templar may have buried a vast treasure on Oak Island.

Personal stories of what it was like to be a soldier during WWII; eyewitness accounts of deadly combat situations on land, sea and air.

Dave Thomas opens a hamburger chain, and his innovations, including a simplified menu, the perfect drive-thru system, and the reasoning behind the square hamburger, turn Wendy's into a success, but the company falters when they're victim of a hoax.

The investigation of the Golden Egg, an area that scientific evidence suggests hides legendary riches, thrills yet concerns the team when it immediately shows signs that they've come upon an underground void.

Andy and Paul return to a Colorado cattle ranch that has had 16 mutilations over the last 25 years and features a bridge that may contain a dimensional portal, uncovering scientific evidence that ties directly to Skinwalker Ranch.

Four competitors must forge weld blades for friction folders from tiny cubes of steel, then two smiths will return home where they will forge a German Zweihänder.

In 1746, a mysterious ship's log suggests that a French admiral linked to the Knights Templar may have buried a vast treasure on Oak Island.

Personal stories of what it was like to be a soldier during WWII; eyewitness accounts of deadly combat situations on land, sea and air.

Dave Thomas opens a hamburger chain, and his innovations, including a simplified menu, the perfect drive-thru system, and the reasoning behind the square hamburger, turn Wendy's into a success, but the company falters when they're victim of a hoax.

In 1746, a mysterious ship's log suggests that a French admiral linked to the Knights Templar may have buried a vast treasure on Oak Island.

Personal stories of what it was like to be a soldier during WWII; eyewitness accounts of deadly combat situations on land, sea and air.

Dave Thomas opens a hamburger chain, and his innovations, including a simplified menu, the perfect drive-thru system, and the reasoning behind the square hamburger, turn Wendy's into a success, but the company falters when they're victim of a hoax.

Four competitors must forge weld blades for friction folders from tiny cubes of steel, then two smiths will return home where they will forge a German Zweihänder.

The investigation of the Golden Egg, an area that scientific evidence suggests hides legendary riches, thrills yet concerns the team when it immediately shows signs that they've come upon an underground void.

Andy and Paul return to a Colorado cattle ranch that has had 16 mutilations over the last 25 years and features a bridge that may contain a dimensional portal, uncovering scientific evidence that ties directly to Skinwalker Ranch.

The investigation of the Golden Egg, an area that scientific evidence suggests hides legendary riches, thrills yet concerns the team when it immediately shows signs that they've come upon an underground void.

A new hire causes Ian to lose his cool; a Dodge Superbee gets a tune-up; an antique toy Packard is restored.

Three generations of Priestly's travel to a remote island to demolish a historic lodge; Ted discovers a surprising collection of valuable 1930's paraphernalia.

Scott and Sheldon roam the Yukon territory and meet unusual characters in Whitehorse, Tagish and Dawson; finds include a hand-carved bear statue and a woolly mammoth tusk.

A new hire causes Ian to lose his cool; a Dodge Superbee gets a tune-up; an antique toy Packard is restored.

Three generations of Priestly's travel to a remote island to demolish a historic lodge; Ted discovers a surprising collection of valuable 1930's paraphernalia.

Scott and Sheldon roam the Yukon territory and meet unusual characters in Whitehorse, Tagish and Dawson; finds include a hand-carved bear statue and a woolly mammoth tusk.

Former winners return to forge a blade using canoe damascus; after two rounds, the remaining champions will move to the final round during which they must create a weapon known for its unique mechanics and deadly double-edged blade - the pata.

Andy and Paul go to a site of ancient Native American petroglyphs, and they discover the power of this rock art may cause the most compelling evidence of unidentified phenomena they've ever recorded.

Don explores the massive underground cities in the mountains of Turkey that may have been home to the first civilization on Earth.

In the wake of the Civil War, American settlers flood into the Great Plains, seizing Native American land as they go; but the Lakota leader, Sitting Bull, alongside Crazy Horse, organizes an unprecedented resistance movement.

Marty and members of the team travel north to a Viking settlement and uncover more evidence that may connect descendants of the Vikings to the Knights Templar; back on Oak Island, new clues suggest Lot 5 was a place of worship.

Andy and Paul go to a site of ancient Native American petroglyphs, and they discover the power of this rock art may cause the most compelling evidence of unidentified phenomena they've ever recorded.

Former winners return to forge a blade using canoe damascus; after two rounds, the remaining champions will move to the final round during which they must create a weapon known for its unique mechanics and deadly double-edged blade - the pata.

Don explores the massive underground cities in the mountains of Turkey that may have been home to the first civilization on Earth.

In the wake of the Civil War, American settlers flood into the Great Plains, seizing Native American land as they go; but the Lakota leader, Sitting Bull, alongside Crazy Horse, organizes an unprecedented resistance movement.

Don explores the massive underground cities in the mountains of Turkey that may have been home to the first civilization on Earth.

In the wake of the Civil War, American settlers flood into the Great Plains, seizing Native American land as they go; but the Lakota leader, Sitting Bull, alongside Crazy Horse, organizes an unprecedented resistance movement.

Former winners return to forge a blade using canoe damascus; after two rounds, the remaining champions will move to the final round during which they must create a weapon known for its unique mechanics and deadly double-edged blade - the pata.

Marty and members of the team travel north to a Viking settlement and uncover more evidence that may connect descendants of the Vikings to the Knights Templar; back on Oak Island, new clues suggest Lot 5 was a place of worship.

Andy and Paul go to a site of ancient Native American petroglyphs, and they discover the power of this rock art may cause the most compelling evidence of unidentified phenomena they've ever recorded.

Marty and members of the team travel north to a Viking settlement and uncover more evidence that may connect descendants of the Vikings to the Knights Templar; back on Oak Island, new clues suggest Lot 5 was a place of worship.

Jay struggles with a custom monster truck; David goes to England.

Ted and Justin travel to Market Village Mall in Markham, Ontario, where they are tasked with carefully unlocking mysterious vault doors while the demolition team begins tear down.

Music star George Canyon has a special request for the guys while Scott makes an expensive custom order in Ontario.

Jay struggles with a custom monster truck; David goes to England.

Ted and Justin travel to Market Village Mall in Markham, Ontario, where they are tasked with carefully unlocking mysterious vault doors while the demolition team begins tear down.

Music star George Canyon has a special request for the guys while Scott makes an expensive custom order in Ontario.

Four previously eliminated bladesmiths return to the forge for a shot at redemption; after two rounds of competition, the two remaining smiths face off to re-create a Viking sword known for its devastating strength.

When Investigator Katie Paige rejoins Andy and Paul at a Colorado ranch where strange phenomena terrorized her as a child, a newly revealed site of concentrated activity results in the discovery of a possible portal above the ranch.

In 2020, COVID-19 effectively shut down the entire world, and in the process, elevated pandemics to the most important issue across the globe.

Sitting Bull and Crazy Horse face George Armstrong Custer and the Seventh Cavalry in the battle of Little Bighorn; when their triumph over the U.S. Army fails to end the war they must continue the fight to preserve the Lakota way of life.

The Fellowship returns to Smith's Cove and finds evidence that may lead to flood tunnels and the Money Pit.

When Investigator Katie Paige rejoins Andy and Paul at a Colorado ranch where strange phenomena terrorized her as a child, a newly revealed site of concentrated activity results in the discovery of a possible portal above the ranch.

Four previously eliminated bladesmiths return to the forge for a shot at redemption; after two rounds of competition, the two remaining smiths face off to re-create a Viking sword known for its devastating strength.

In 2020, COVID-19 effectively shut down the entire world, and in the process, elevated pandemics to the most important issue across the globe.

Sitting Bull and Crazy Horse face George Armstrong Custer and the Seventh Cavalry in the battle of Little Bighorn; when their triumph over the U.S. Army fails to end the war they must continue the fight to preserve the Lakota way of life.

In 2020, COVID-19 effectively shut down the entire world, and in the process, elevated pandemics to the most important issue across the globe.

Sitting Bull and Crazy Horse face George Armstrong Custer and the Seventh Cavalry in the battle of Little Bighorn; when their triumph over the U.S. Army fails to end the war they must continue the fight to preserve the Lakota way of life.

Four previously eliminated bladesmiths return to the forge for a shot at redemption; after two rounds of competition, the two remaining smiths face off to re-create a Viking sword known for its devastating strength.

The Fellowship returns to Smith's Cove and finds evidence that may lead to flood tunnels and the Money Pit.

When Investigator Katie Paige rejoins Andy and Paul at a Colorado ranch where strange phenomena terrorized her as a child, a newly revealed site of concentrated activity results in the discovery of a possible portal above the ranch.

The Fellowship returns to Smith's Cove and finds evidence that may lead to flood tunnels and the Money Pit.

Larry test-drives a Pontiac GTO; a souped-up lawn mower.

At the site of the former Yugoslavian Consulate, Ted hopes to salvage invaluable secret relics of the Cold War; back at the National, a buyer shows interest in a vintage WW II truck but Ted has to convince him the price is right.

A barbershop salutes the Toronto Maple Leafs; Sheldon and Scott engage in a 15-minute pick-a-thon; the Calgary warehouse welcomes a new employee.

Larry test-drives a Pontiac GTO; a souped-up lawn mower.

At the site of the former Yugoslavian Consulate, Ted hopes to salvage invaluable secret relics of the Cold War; back at the National, a buyer shows interest in a vintage WW II truck but Ted has to convince him the price is right.

A barbershop salutes the Toronto Maple Leafs; Sheldon and Scott engage in a 15-minute pick-a-thon; the Calgary warehouse welcomes a new employee.

The judges pick past bladesmiths to represent them; first, the smiths must use steel from N.Y.C. streets to forge signature blades; in the final round, the competitors have five days to forge a sword that originated in West Africa, the Ida.

When Andy and Paul investigate a remote Southern California desert, where local lore speaks of an entity called Goldie, they find that not only is there scientific evidence backing up these stories, but other entities may not want these stories told.

Troy Landry's old family friend, Mr. Sterling, reveals a tantalizing story about a treasure chest said to have been lost in a Louisiana bayou over 75 years ago.

Ronnie and Timmy fight to finish their marsh tags before the gators move inland; Bruce and Anna chase monsters in a remote honey hole; Jacob unleashes Little Willie on the bayou beasts; Troy and Pickle wage war against a cannibal gator.

As the excessive heat begins to wear on the hunters, the King of the Swamp launches a contest to catch the biggest python; each hunting team uses their local knowledge to devise different strategies, hoping to come home the winner.

As the team uncovers evidence near flood tunnels, ground-penetrating radar detects a possible offset chamber in the Money Pit.

When Andy and Paul investigate a remote Southern California desert, where local lore speaks of an entity called Goldie, they find that not only is there scientific evidence backing up these stories, but other entities may not want these stories told.

The judges pick past bladesmiths to represent them; first, the smiths must use steel from N.Y.C. streets to forge signature blades; in the final round, the competitors have five days to forge a sword that originated in West Africa, the Ida.

Troy Landry's old family friend, Mr. Sterling, reveals a tantalizing story about a treasure chest said to have been lost in a Louisiana bayou over 75 years ago.

Ronnie and Timmy fight to finish their marsh tags before the gators move inland; Bruce and Anna chase monsters in a remote honey hole; Jacob unleashes Little Willie on the bayou beasts; Troy and Pickle wage war against a cannibal gator.

As the excessive heat begins to wear on the hunters, the King of the Swamp launches a contest to catch the biggest python; each hunting team uses their local knowledge to devise different strategies, hoping to come home the winner.

Troy Landry's old family friend, Mr. Sterling, reveals a tantalizing story about a treasure chest said to have been lost in a Louisiana bayou over 75 years ago.

Ronnie and Timmy fight to finish their marsh tags before the gators move inland; Bruce and Anna chase monsters in a remote honey hole; Jacob unleashes Little Willie on the bayou beasts; Troy and Pickle wage war against a cannibal gator.

As the excessive heat begins to wear on the hunters, the King of the Swamp launches a contest to catch the biggest python; each hunting team uses their local knowledge to devise different strategies, hoping to come home the winner.

The judges pick past bladesmiths to represent them; first, the smiths must use steel from N.Y.C. streets to forge signature blades; in the final round, the competitors have five days to forge a sword that originated in West Africa, the Ida.

As the team uncovers evidence near flood tunnels, ground-penetrating radar detects a possible offset chamber in the Money Pit.

When Andy and Paul investigate a remote Southern California desert, where local lore speaks of an entity called Goldie, they find that not only is there scientific evidence backing up these stories, but other entities may not want these stories told.

As the team uncovers evidence near flood tunnels, ground-penetrating radar detects a possible offset chamber in the Money Pit.

Scott discovers a totem pole at the legendary Blackfoot Truck Stop in Alberta.

Scott visits a collector with plenty of outbuildings but soon discovers it has already been picked.

While demolishing on an old farmhouse, the Priestly team uncovers a hidden historic treasure.

Scott discovers a totem pole at the legendary Blackfoot Truck Stop in Alberta.

The guys encounter bullet ants and flesh-eating piranha; after hours of pain from the bullet ant, Caveman Rob dips his blood-covered arm in a tank of piranhas.

In a Bolivian jungle, Adam and Caveman Rob pursue the fabled executioner wasp, warrior wasp, and Goliath bird-eating tarantula; one causes a medical emergency, and another delivers a nightmarish bite that leaves Adam's arm partially paralyzed.

Adam and Caveman Rob head to South Africa to face the giant bark scorpion, the tiny uroplectes scorpion, and the highly venomous lion fish.

In Africa, Adam and Caveman Rob search for the Nile Monitor Lizard and the Velvet Ant but are attacked by an even deadlier animal and are lucky to escape with their lives.

Adam and Caveman Rob journey to the Asian island of Bali and face off with the Fire Urchin that almost knocks out Caveman Rob, and the Rove Beetle, which surpasses the record for the highest pain score to date and causes permanent damage.

Adam and Caveman Rob wrap up in Indonesia with the two worst bites to date from a Giant Asian Centipede and a 16-foot Reticulated Python; vomiting, stitches, and rivers of blood make them ask if they are able to continue their research.

In Mexico, Adam and Caveman Rob tango with two torturous animals - including one that topped Justin Schmidt's pain scale; the guys up the stakes by covering their hands with hundreds of harvester ants and two pain index records are shattered.

A dangerous underwater hunt for the potentially deadly Scorpion Fish in the Baja California ocean leads to a toxic sting that puts Adam in danger and matches the highest pain score to date.

The crew finds out that the swamp may be manmade.

The guys encounter bullet ants and flesh-eating piranha; after hours of pain from the bullet ant, Caveman Rob dips his blood-covered arm in a tank of piranhas.

In a Bolivian jungle, Adam and Caveman Rob pursue the fabled executioner wasp, warrior wasp, and Goliath bird-eating tarantula; one causes a medical emergency, and another delivers a nightmarish bite that leaves Adam's arm partially paralyzed.

Adam and Caveman Rob head to South Africa to face the giant bark scorpion, the tiny uroplectes scorpion, and the highly venomous lion fish.

In Africa, Adam and Caveman Rob search for the Nile Monitor Lizard and the Velvet Ant but are attacked by an even deadlier animal and are lucky to escape with their lives.

Adam and Caveman Rob journey to the Asian island of Bali and face off with the Fire Urchin that almost knocks out Caveman Rob, and the Rove Beetle, which surpasses the record for the highest pain score to date and causes permanent damage.

Adam and Caveman Rob wrap up in Indonesia with the two worst bites to date from a Giant Asian Centipede and a 16-foot Reticulated Python; vomiting, stitches, and rivers of blood make them ask if they are able to continue their research.

In Mexico, Adam and Caveman Rob tango with two torturous animals - including one that topped Justin Schmidt's pain scale; the guys up the stakes by covering their hands with hundreds of harvester ants and two pain index records are shattered.

A dangerous underwater hunt for the potentially deadly Scorpion Fish in the Baja California ocean leads to a toxic sting that puts Adam in danger and matches the highest pain score to date.

The crew finds out that the swamp may be manmade.

The guys encounter bullet ants and flesh-eating piranha; after hours of pain from the bullet ant, Caveman Rob dips his blood-covered arm in a tank of piranhas.

In a Bolivian jungle, Adam and Caveman Rob pursue the fabled executioner wasp, warrior wasp, and Goliath bird-eating tarantula; one causes a medical emergency, and another delivers a nightmarish bite that leaves Adam's arm partially paralyzed.

Stories about parallel dimensions.

Stories of the human body reaching beyond the limits of modern medicine.

Massive and sophisticated contributions from Korea have shaped our modern world, from ancient advances like the greenhouse and armoured boats to modern screen technology, online gaming, E-sports and K-Pop.

Stories about parallel dimensions.

Adam and Caveman Rob take on America's biggest and most deadly scorpions, but the surprising result is a hugely painful wake-up call, and a new Scorpion King is crowned.

Adam has a phobia of tarantulas, so Caveman Rob picks two of the world's nastiest ones for them to endure, including a tarantula with the well-deserved nickname of "Orange Bitey Thing.".

Adam and Caveman Rob get bitten by one lizard whose venom is in doubt, but not its ability to latch on and tear flesh, and another whose venom is notoriously painful; the shocking results set new records for the pain index.

In a tribute to the godfather of the pain index, Dr. Justin Schmidt, Adam and Rob tangle with a new batch of extremely painful and deadly insects; one colony of ants kicks the Schmidt out of them.

Adam thinks he's getting his revenge on Rob for selecting tarantulas earlier this season by programming Rob's phobia: centipedes; the joke is on Adam when an American centipede produces one of his most painful bites ever.

Some of the most painful animals around can be found in the backyard; Rob and Adam take on an assassin bug, a Jerusalem cricket and the brown widow spider, producing a record-setting episode of pain.

Rob and Adam test the pain dished out by a trio of unlikely creatures commonly kept in home aquariums; they proceed to ruin the image of a popular cartoon movie character for millions of children.

Rob and Adam test the yellow head moray eel for possible venom effects but must resort to a risky, bloody bite; venom is not the issue for the electric eel.

It's America vs. Australia in a battle royale of pain administered by sharks; after getting stung by both, Adam and Rob realize that when their countries win, they lose.

Adam and Rob serve up their most annoying stings in the history of the pain index.

Adam and Caveman Rob take on America's biggest and most deadly scorpions, but the surprising result is a hugely painful wake-up call, and a new Scorpion King is crowned.

Adam has a phobia of tarantulas, so Caveman Rob picks two of the world's nastiest ones for them to endure, including a tarantula with the well-deserved nickname of "Orange Bitey Thing.".

Adam and Caveman Rob get bitten by one lizard whose venom is in doubt, but not its ability to latch on and tear flesh, and another whose venom is notoriously painful; the shocking results set new records for the pain index.

In a tribute to the godfather of the pain index, Dr. Justin Schmidt, Adam and Rob tangle with a new batch of extremely painful and deadly insects; one colony of ants kicks the Schmidt out of them.

Adam thinks he's getting his revenge on Rob for selecting tarantulas earlier this season by programming Rob's phobia: centipedes; the joke is on Adam when an American centipede produces one of his most painful bites ever.

Some of the most painful animals around can be found in the backyard; Rob and Adam take on an assassin bug, a Jerusalem cricket and the brown widow spider, producing a record-setting episode of pain.

Rob and Adam test the pain dished out by a trio of unlikely creatures commonly kept in home aquariums; they proceed to ruin the image of a popular cartoon movie character for millions of children.

Rob and Adam test the yellow head moray eel for possible venom effects but must resort to a risky, bloody bite; venom is not the issue for the electric eel.

It's America vs. Australia in a battle royale of pain administered by sharks; after getting stung by both, Adam and Rob realize that when their countries win, they lose.

Adam and Rob serve up their most annoying stings in the history of the pain index.

David makes Ian the project leader for a rat-infested Jaguar; a rare Cadillac comes into Jay's shop; David's Bugatti threatens to embarrass him.

Ted and Justin salvage at a century-old warehouse that was once the mail order depot for one of North America's largest department stores; Ted promises Ryan big profits from the timber inside the massive structure, but things don't go as planned.

The guys hunt for Wild West collectibles that they hope will fit in perfectly at county music star George Canyon's new home.

David makes Ian the project leader for a rat-infested Jaguar; a rare Cadillac comes into Jay's shop; David's Bugatti threatens to embarrass him.

Ted and Justin salvage at a century-old warehouse that was once the mail order depot for one of North America's largest department stores; Ted promises Ryan big profits from the timber inside the massive structure, but things don't go as planned.

The guys hunt for Wild West collectibles that they hope will fit in perfectly at county music star George Canyon's new home.

Four bladesmiths tee up for a never-before seen challenge, harvesting steel from a vintage golf club to forge signature blades; in the final round, the remaining smiths must forge a pair of iconic double bladed weapons with two times the edge.

Tim Allen, Richard Karn, and April Wilkerson show what's possible when you put power under pressure; with a little help from their friends at Bobcat, the team gets into the driver's seat of a fleet of heavy machinery.

Tim Allen, Richard Karn and April Wilkerson dissect the mighty power of blades; starting in Tim's workshop, they show what happens when a hand gets caught in a garbage disposal and make a home-milling machine.

The gates are open to some of history's sinister structures; from the terrifying Tower of London to a hotel of horrors, discovering the dark secrets hidden within these foreboding fortresses.

Leavenworth, located 25-miles northwest of Kansas City, K.S., was the largest maximum-security federal prison in the United States for over a hundred years; Carl Panzram, Robert Stroud and Tommy Silverstein share stories of life behind its walls.

Dannemora prison opens in 1845 as a source of free labor for the local mines; Kenneth Kimes takes a Court TV producer hostage; Tupac Shakur stirs up trouble; Richard Matt and David Sweat attempt to escape.

The Rollin' 60s Crips attempt to become the dominant street gang in Los Angeles regardless of the cost.

After the Cleveland Mafia bets big on Vegas, the city of Cleveland faces troubles when their boss suddenly dies.

When the team hits more wood deep in the Money Pit area where GPR results detected what could be an offset chamber, the Fellowship is more convinced than ever that their search for answers is about to payoff.

Tim Allen, Richard Karn, and April Wilkerson show what's possible when you put power under pressure; with a little help from their friends at Bobcat, the team gets into the driver's seat of a fleet of heavy machinery.

Tim Allen, Richard Karn and April Wilkerson dissect the mighty power of blades; starting in Tim's workshop, they show what happens when a hand gets caught in a garbage disposal and make a home-milling machine.

Four bladesmiths tee up for a never-before seen challenge, harvesting steel from a vintage golf club to forge signature blades; in the final round, the remaining smiths must forge a pair of iconic double bladed weapons with two times the edge.

The gates are open to some of history's sinister structures; from the terrifying Tower of London to a hotel of horrors, discovering the dark secrets hidden within these foreboding fortresses.

Leavenworth, located 25-miles northwest of Kansas City, K.S., was the largest maximum-security federal prison in the United States for over a hundred years; Carl Panzram, Robert Stroud and Tommy Silverstein share stories of life behind its walls.

Dannemora prison opens in 1845 as a source of free labor for the local mines; Kenneth Kimes takes a Court TV producer hostage; Tupac Shakur stirs up trouble; Richard Matt and David Sweat attempt to escape.

The Rollin' 60s Crips attempt to become the dominant street gang in Los Angeles regardless of the cost.

After the Cleveland Mafia bets big on Vegas, the city of Cleveland faces troubles when their boss suddenly dies.

The gates are open to some of history's sinister structures; from the terrifying Tower of London to a hotel of horrors, discovering the dark secrets hidden within these foreboding fortresses.

Leavenworth, located 25-miles northwest of Kansas City, K.S., was the largest maximum-security federal prison in the United States for over a hundred years; Carl Panzram, Robert Stroud and Tommy Silverstein share stories of life behind its walls.

Dannemora prison opens in 1845 as a source of free labor for the local mines; Kenneth Kimes takes a Court TV producer hostage; Tupac Shakur stirs up trouble; Richard Matt and David Sweat attempt to escape.

The Rollin' 60s Crips attempt to become the dominant street gang in Los Angeles regardless of the cost.

After the Cleveland Mafia bets big on Vegas, the city of Cleveland faces troubles when their boss suddenly dies.

Four bladesmiths tee up for a never-before seen challenge, harvesting steel from a vintage golf club to forge signature blades; in the final round, the remaining smiths must forge a pair of iconic double bladed weapons with two times the edge.

When the team hits more wood deep in the Money Pit area where GPR results detected what could be an offset chamber, the Fellowship is more convinced than ever that their search for answers is about to payoff.

Tim Allen, Richard Karn, and April Wilkerson show what's possible when you put power under pressure; with a little help from their friends at Bobcat, the team gets into the driver's seat of a fleet of heavy machinery.

Tim Allen, Richard Karn and April Wilkerson dissect the mighty power of blades; starting in Tim's workshop, they show what happens when a hand gets caught in a garbage disposal and make a home-milling machine.

When the team hits more wood deep in the Money Pit area where GPR results detected what could be an offset chamber, the Fellowship is more convinced than ever that their search for answers is about to payoff.

The guys scramble to ready their Alpha Romeo and Delahaye for the Concours show in Pebble Beach, Calif.

Ted's new salvage job is a blast from the past: a classic bowling alley; Ryan leads his team on a high-stakes overnight highway bridge demolition.

Sheldon plays auctioneer when Scott decides to sell the entire collection of treasures in his man cave.

The guys scramble to ready their Alpha Romeo and Delahaye for the Concours show in Pebble Beach, Calif.

Ted's new salvage job is a blast from the past: a classic bowling alley; Ryan leads his team on a high-stakes overnight highway bridge demolition.

Sheldon plays auctioneer when Scott decides to sell the entire collection of treasures in his man cave.

The competitors must forge two blades in the first round, pushing them to their limits and leading to a hospital trip; after the second round, the two remaining smiths have five days to create an iconic 15th-century combat sword, the Katzbalger.

The team attempts to foil a mission impossible style security grid created by a pair of laser experts; Tim and Richard hit the road to witness industrial-strength lasers carving up slabs of steel; April cooks an egg with a super powerful flashlight.

In Tim's workshop, the crew uses magnets for several hacks and Tim tangles with ultra-powerful rare Earth magnets; Richard and April battle it out to see who can snag the biggest chunk of metal in a supersized crane game.

A clue to solving the 230-year-old Oak Island mystery may be a lead cross, whose design has been found not only on the island, but all across the globe.

A dust-covered box hidden in a British manor house for 108 years contains the personal notes of Lord Mersey, the respected British jurist and politician charged with investigating the sinking of the Titanic in 1912.

After more than a dozen years of searching, the team may have discovered the legendary Chappell Vault.

The team attempts to foil a mission impossible style security grid created by a pair of laser experts; Tim and Richard hit the road to witness industrial-strength lasers carving up slabs of steel; April cooks an egg with a super powerful flashlight.

In Tim's workshop, the crew uses magnets for several hacks and Tim tangles with ultra-powerful rare Earth magnets; Richard and April battle it out to see who can snag the biggest chunk of metal in a supersized crane game.

The competitors must forge two blades in the first round, pushing them to their limits and leading to a hospital trip; after the second round, the two remaining smiths have five days to create an iconic 15th-century combat sword, the Katzbalger.

A clue to solving the 230-year-old Oak Island mystery may be a lead cross, whose design has been found not only on the island, but all across the globe.

A dust-covered box hidden in a British manor house for 108 years contains the personal notes of Lord Mersey, the respected British jurist and politician charged with investigating the sinking of the Titanic in 1912.

A clue to solving the 230-year-old Oak Island mystery may be a lead cross, whose design has been found not only on the island, but all across the globe.

A dust-covered box hidden in a British manor house for 108 years contains the personal notes of Lord Mersey, the respected British jurist and politician charged with investigating the sinking of the Titanic in 1912.

The competitors must forge two blades in the first round, pushing them to their limits and leading to a hospital trip; after the second round, the two remaining smiths have five days to create an iconic 15th-century combat sword, the Katzbalger.

After more than a dozen years of searching, the team may have discovered the legendary Chappell Vault.

The team attempts to foil a mission impossible style security grid created by a pair of laser experts; Tim and Richard hit the road to witness industrial-strength lasers carving up slabs of steel; April cooks an egg with a super powerful flashlight.

In Tim's workshop, the crew uses magnets for several hacks and Tim tangles with ultra-powerful rare Earth magnets; Richard and April battle it out to see who can snag the biggest chunk of metal in a supersized crane game.

After more than a dozen years of searching, the team may have discovered the legendary Chappell Vault.

With the biggest storm in centuries only a few days away, the truckers race for loads; Art and Todd set out to prove themselves.

Under the watchful eye of Uncle Ryan, Julian puts his operator skills to the test during a delicate and risky demolition job.

A palm reader predicts that the guys will have a productive visit to Quebec, but one reluctant dealer could spoil their plans.

With the biggest storm in centuries only a few days away, the truckers race for loads; Art and Todd set out to prove themselves.

Under the watchful eye of Uncle Ryan, Julian puts his operator skills to the test during a delicate and risky demolition job.

A palm reader predicts that the guys will have a productive visit to Quebec, but one reluctant dealer could spoil their plans.

Facing a new twist in the first round, four bladesmiths must forge a karambit, a curved knife that resembles a claw; the final two competitors have five days to forge one of the deadliest weapons in African history, the makraka.

The team visits the country's largest utility company to see how they make supersized bolts for their giant electrical towers; in Tim's workshop, April reveals an ingenious hack for removing damaged screws and Tim has a run-in with the Jiggler.

High above the Port of Los Angeles, the crew takes turns operating a massive ship-loading crane; in Tim's workshop, they experiment with a device that gives them super human strength and Tim gets his hands on a powerful vacuum that truly sucks.

Don follows the clues hidden underground as he searches for evidence of 10,000 Aztecs who fled Mexico and disappeared somewhere in America.

A new ground-breaking expedition heads back to the frozen seas to hunt down Shackleton's lost ship.

While the team continues to hunt down the Chappell Vault in the Money Pit, new structures are uncovered in the mysterious swamp that strengthen a developing theory.