Racing an incoming hurricane, Darrell Miklos and his team are forced to make tough choices; but after a season-long search, they locate the source of the massive magnetometer hit recorded at Target 4.

Treasure hunter Darrel Miklos and his team are embarking on a mission to solve a mystery: the disappearance of the Nazi's looted World War II treasure, estimated to be worth billions.

Treasure hunter Darrell Miklos' search for treasure-filled, lost Nazi U-Boats takes an unexpected turn when a 98-year-old local eyewitness gives him a tip that changes the course of his entire investigation.

After finding Nazi artifacts at a sunken pier, Darrell and his team continue their search to a site known as Target 3 where they find a possible component of a Nazi secret weapon that changes the direction of their investigation.

With weather preventing Darrell Miklos and the team from diving from the boat, they attempt a risky strategy; Garth makes a solo journey to explore a deserted island where he discovers a mysterious cross.

Treasure hunter Darrell Miklos and his team make a discovery far older than they expected; new evidence emerges suggesting that the team may have uncovered a long-lost battle at Target 4.

Racing an incoming hurricane, Darrell Miklos and his team are forced to make tough choices; but after a season-long search, they locate the source of the massive magnetometer hit recorded at Target 4.

Polar drivers Lisa, Art and Todd start on an epic journey up the longest seasonal winter road in the world; VP stays closer to home, traveling dangerous roads in a late attempt to boost their load count.

Karl hopes to score 100 ounces of gold in one week; Ken must deal with an eager employee who keeps breaking equipment.

Life at Buffalo Airways; a co-pilot's emergency landing; the boss' son is in hot water.

Polar drivers Lisa, Art and Todd start on an epic journey up the longest seasonal winter road in the world; VP stays closer to home, traveling dangerous roads in a late attempt to boost their load count.

Karl hopes to score 100 ounces of gold in one week; Ken must deal with an eager employee who keeps breaking equipment.

Life at Buffalo Airways; a co-pilot's emergency landing; the boss' son is in hot water.

Host Peyton Manning takes viewers through the top 10 candies of all time.

Two heavy-hitting cereal rivals duke it out for breakfast dominance; competition heats up when an idea is stolen; the ensuing battle transforms the breakfast landscape from a labor intensive meal at the table, to a meal of convenience on the go.

Evidence continues to mount and patterns emerge, as a group of former U.S. government insiders seek the truth behind UFOs; two more eyewitnesses describe a mass sighting of UFOs within striking distance of one of the most important cities in the U.S.

Notorious phenomenon-experiencer Chris Bledsoe's daughter Emily purportedly has similar abilities to her father; the team combines her with Chris at the Monroe Institute and the Florida Everglades.

As the team launches high-powered rockets into the sky on Skinwalker Ranch, they are frozen in shock by what they encounter.

Lauro kicks Iditarod training into high gear with a 300-mile run; Bret and Ivy go from checking traps to hunting moose; Mike responds to a bridge washout; Tom helps Paul with running his trapline and skinning his catch; Jake tracks a killer lion.

Two heavy-hitting cereal rivals duke it out for breakfast dominance; competition heats up when an idea is stolen; the ensuing battle transforms the breakfast landscape from a labor intensive meal at the table, to a meal of convenience on the go.

Host Peyton Manning takes viewers through the top 10 candies of all time.

Evidence continues to mount and patterns emerge, as a group of former U.S. government insiders seek the truth behind UFOs; two more eyewitnesses describe a mass sighting of UFOs within striking distance of one of the most important cities in the U.S.

Notorious phenomenon-experiencer Chris Bledsoe's daughter Emily purportedly has similar abilities to her father; the team combines her with Chris at the Monroe Institute and the Florida Everglades.

As the team launches high-powered rockets into the sky on Skinwalker Ranch, they are frozen in shock by what they encounter.

Evidence continues to mount and patterns emerge, as a group of former U.S. government insiders seek the truth behind UFOs; two more eyewitnesses describe a mass sighting of UFOs within striking distance of one of the most important cities in the U.S.

Notorious phenomenon-experiencer Chris Bledsoe's daughter Emily purportedly has similar abilities to her father; the team combines her with Chris at the Monroe Institute and the Florida Everglades.

As the team launches high-powered rockets into the sky on Skinwalker Ranch, they are frozen in shock by what they encounter.

Host Peyton Manning takes viewers through the top 10 candies of all time.

Lauro kicks Iditarod training into high gear with a 300-mile run; Bret and Ivy go from checking traps to hunting moose; Mike responds to a bridge washout; Tom helps Paul with running his trapline and skinning his catch; Jake tracks a killer lion.

Two heavy-hitting cereal rivals duke it out for breakfast dominance; competition heats up when an idea is stolen; the ensuing battle transforms the breakfast landscape from a labor intensive meal at the table, to a meal of convenience on the go.

Lauro kicks Iditarod training into high gear with a 300-mile run; Bret and Ivy go from checking traps to hunting moose; Mike responds to a bridge washout; Tom helps Paul with running his trapline and skinning his catch; Jake tracks a killer lion.

Lisa has to decide help a competitor push further into the arctic unknown or go back to Polar headquarters with her teammates.

Karl contemplates a crew member's dismissal; fire threatens Cam's camp; Ken pours money into his operation.

With Christmas right around the corner, Buffalo's crucial food and mail runs come to a halt.

Lisa has to decide help a competitor push further into the arctic unknown or go back to Polar headquarters with her teammates.

Karl contemplates a crew member's dismissal; fire threatens Cam's camp; Ken pours money into his operation.

With Christmas right around the corner, Buffalo's crucial food and mail runs come to a halt.

From Evel Knievel to Harry Houdini, host Peyton Manning counts down the top 10 daredevils of all time, as voted on by a panel of experts.

Eventually challenging America's burger joint heavyweights, two future fast-food kingpins find themselves on a collision course in an all-out chicken sandwich war that is still raging to this day.

When Hispanic men see their membership to the Hells Angels denied, they form their own club: the Mongols Motorcycle Club; they clash with the Hells Angels and law enforcement.

America's deadliest prison gang, the Aryan Brotherhood, goes to war with anyone who stands in their way.

In the wake of the Civil War, a revolution takes place on the backs of visionary entrepreneurs of industry like Heinz, Kellogg and Post; they push the limits of ingenuity to launch businesses that will revolutionize industry.

Mike braves icy waters to catch snow crabs living on the seafloor hundreds of feet below the surface.

Eventually challenging America's burger joint heavyweights, two future fast-food kingpins find themselves on a collision course in an all-out chicken sandwich war that is still raging to this day.

From Evel Knievel to Harry Houdini, host Peyton Manning counts down the top 10 daredevils of all time, as voted on by a panel of experts.

When Hispanic men see their membership to the Hells Angels denied, they form their own club: the Mongols Motorcycle Club; they clash with the Hells Angels and law enforcement.

America's deadliest prison gang, the Aryan Brotherhood, goes to war with anyone who stands in their way.

In the wake of the Civil War, a revolution takes place on the backs of visionary entrepreneurs of industry like Heinz, Kellogg and Post; they push the limits of ingenuity to launch businesses that will revolutionize industry.

When Hispanic men see their membership to the Hells Angels denied, they form their own club: the Mongols Motorcycle Club; they clash with the Hells Angels and law enforcement.

America's deadliest prison gang, the Aryan Brotherhood, goes to war with anyone who stands in their way.

In the wake of the Civil War, a revolution takes place on the backs of visionary entrepreneurs of industry like Heinz, Kellogg and Post; they push the limits of ingenuity to launch businesses that will revolutionize industry.

From Evel Knievel to Harry Houdini, host Peyton Manning counts down the top 10 daredevils of all time, as voted on by a panel of experts.

Mike braves icy waters to catch snow crabs living on the seafloor hundreds of feet below the surface.

Eventually challenging America's burger joint heavyweights, two future fast-food kingpins find themselves on a collision course in an all-out chicken sandwich war that is still raging to this day.

Mike braves icy waters to catch snow crabs living on the seafloor hundreds of feet below the surface.

Experts predict one of the shortest and warmest winters on record; as a result, companies risk financial ruin and communities face deprivation unless the drivers can deliver vital supplies before their window of opportunity slams shut.

Ken loses a machine when he can't afford to pay his debts and his crew; Big Al experiences more mechanical breakdowns; Dennis needs to quickly discover $10,000 worth of gold or get shut down.

Arnie runs into a string of bad luck on his birthday run, threatening his naughty birthday surprise.

Experts predict one of the shortest and warmest winters on record; as a result, companies risk financial ruin and communities face deprivation unless the drivers can deliver vital supplies before their window of opportunity slams shut.

Ken loses a machine when he can't afford to pay his debts and his crew; Big Al experiences more mechanical breakdowns; Dennis needs to quickly discover $10,000 worth of gold or get shut down.

Arnie runs into a string of bad luck on his birthday run, threatening his naughty birthday surprise.

Sometimes there are names that are almost inseparable, including Venus and Serena, Ali and Cosel, Lennon and McCartney; Peyton Manning counts down the top 10 dynamic duos of all time, as voted on by a panel of experts.

Four intrepid food entrepreneurs race to harness emerging technologies, like the home freezer and microwave, to bring revolutionary frozen snack icons to a waiting world, and forever change everything about eating.

Tony Harris separates the real from the fake in some of the most compelling Bigfoot evidence recently captured; footprint casts from Mount St. Helens may be proof that a massive, undiscovered primate lives in North America.

A new breed of innovator rises up to expand American industry and push the limits of new technology; a father-and-son duo named Mars start on a path to challenge the chocolate throne.

Marty withstands a brutal cold snap; Mike carves a narrow road out of a steep ridge; Daniel charts a daring course through narrow straits; Jake's dogs brawl with an aggressive lion; Paul ventures deeper into the wilderness to expand his trapline.

Four intrepid food entrepreneurs race to harness emerging technologies, like the home freezer and microwave, to bring revolutionary frozen snack icons to a waiting world, and forever change everything about eating.

Sometimes there are names that are almost inseparable, including Venus and Serena, Ali and Cosel, Lennon and McCartney; Peyton Manning counts down the top 10 dynamic duos of all time, as voted on by a panel of experts.

Tony Harris separates the real from the fake in some of the most compelling Bigfoot evidence recently captured; footprint casts from Mount St. Helens may be proof that a massive, undiscovered primate lives in North America.

A new breed of innovator rises up to expand American industry and push the limits of new technology; a father-and-son duo named Mars start on a path to challenge the chocolate throne.

Tony Harris separates the real from the fake in some of the most compelling Bigfoot evidence recently captured; footprint casts from Mount St. Helens may be proof that a massive, undiscovered primate lives in North America.

A new breed of innovator rises up to expand American industry and push the limits of new technology; a father-and-son duo named Mars start on a path to challenge the chocolate throne.

Sometimes there are names that are almost inseparable, including Venus and Serena, Ali and Cosel, Lennon and McCartney; Peyton Manning counts down the top 10 dynamic duos of all time, as voted on by a panel of experts.

Marty withstands a brutal cold snap; Mike carves a narrow road out of a steep ridge; Daniel charts a daring course through narrow straits; Jake's dogs brawl with an aggressive lion; Paul ventures deeper into the wilderness to expand his trapline.

Four intrepid food entrepreneurs race to harness emerging technologies, like the home freezer and microwave, to bring revolutionary frozen snack icons to a waiting world, and forever change everything about eating.

Marty withstands a brutal cold snap; Mike carves a narrow road out of a steep ridge; Daniel charts a daring course through narrow straits; Jake's dogs brawl with an aggressive lion; Paul ventures deeper into the wilderness to expand his trapline.

Art Burke crashes his truck into a snowbank; Alex Debogorski makes his return and faces off with an untested crossing; Mark Kohaykewych tests out new driver Steph Custance; Lisa Kelly faces a monster incline; Darrell Ward runs into rival Todd Dewey.

Ken contends with a double mutiny; Cam's injured employee is airlifted to a hospital; Karl's crew encounters a bear.

Justin delivers a generator when a power failure exposes Rankin Inlet to the northern elements.

Art Burke crashes his truck into a snowbank; Alex Debogorski makes his return and faces off with an untested crossing; Mark Kohaykewych tests out new driver Steph Custance; Lisa Kelly faces a monster incline; Darrell Ward runs into rival Todd Dewey.

Ken contends with a double mutiny; Cam's injured employee is airlifted to a hospital; Karl's crew encounters a bear.

Justin delivers a generator when a power failure exposes Rankin Inlet to the northern elements.

From the Roman Colosseum to Wrigley Field, host Peyton Manning counts down the top 10 stadiums as voted on by a panel of experts.

When an entrepreneur creates shelf-stable peanut butter out of his garage, it leads to the birth of an iconic sandwich; as competition heats up to be America's favorite peanut butter, three famous brands battle it out to be number one.

Bodie fixes up a 1959 Ford F100 in hopes of flipping it to an exacting Ford truck aficionado; Andy restores a 1940's JC Higgins bike; Bob's Garage resurrects a buried 1930's gas pump.

WWII sees competing industrial empires joining the war effort in a united front to fuel the forces fighting for freedom abroad; in Post-War America, visionaries revolutionize the industry, and pave the way for the golden age of the American dream.

Lauro begins the 1,000-mile Iditarod with his sixteen-dog team, pitted against harsh conditions and rugged terrain in one of the toughest races on Earth.

When an entrepreneur creates shelf-stable peanut butter out of his garage, it leads to the birth of an iconic sandwich; as competition heats up to be America's favorite peanut butter, three famous brands battle it out to be number one.

From the Roman Colosseum to Wrigley Field, host Peyton Manning counts down the top 10 stadiums as voted on by a panel of experts.

Bodie fixes up a 1959 Ford F100 in hopes of flipping it to an exacting Ford truck aficionado; Andy restores a 1940's JC Higgins bike; Bob's Garage resurrects a buried 1930's gas pump.

WWII sees competing industrial empires joining the war effort in a united front to fuel the forces fighting for freedom abroad; in Post-War America, visionaries revolutionize the industry, and pave the way for the golden age of the American dream.

Bodie fixes up a 1959 Ford F100 in hopes of flipping it to an exacting Ford truck aficionado; Andy restores a 1940's JC Higgins bike; Bob's Garage resurrects a buried 1930's gas pump.

WWII sees competing industrial empires joining the war effort in a united front to fuel the forces fighting for freedom abroad; in Post-War America, visionaries revolutionize the industry, and pave the way for the golden age of the American dream.

From the Roman Colosseum to Wrigley Field, host Peyton Manning counts down the top 10 stadiums as voted on by a panel of experts.

Lauro begins the 1,000-mile Iditarod with his sixteen-dog team, pitted against harsh conditions and rugged terrain in one of the toughest races on Earth.

When an entrepreneur creates shelf-stable peanut butter out of his garage, it leads to the birth of an iconic sandwich; as competition heats up to be America's favorite peanut butter, three famous brands battle it out to be number one.

Lauro begins the 1,000-mile Iditarod with his sixteen-dog team, pitted against harsh conditions and rugged terrain in one of the toughest races on Earth.

Lisa Kelly finds herself stranded hundreds of miles from the nearest town; Darrell Ward takes an off-road shortcut; Art Burke encounters a melting ice crossing and a full load; Steph Custance finds out whether she'll become part of the Polar team.

Ken's wife gets some surprising news when she arrives for a visit; Big Al has trouble with his excavator; Karl's season is threatened by permafrost.

Cory races to turn two waterbombers into trans-Atlantic aircraft for the journey to Turkey.

Lisa Kelly finds herself stranded hundreds of miles from the nearest town; Darrell Ward takes an off-road shortcut; Art Burke encounters a melting ice crossing and a full load; Steph Custance finds out whether she'll become part of the Polar team.

Ken's wife gets some surprising news when she arrives for a visit; Big Al has trouble with his excavator; Karl's season is threatened by permafrost.

Cory races to turn two waterbombers into trans-Atlantic aircraft for the journey to Turkey.

Innovations, from the light bulb to the automobile, change the world; host Peyton Manning unveils the top 10 inventions of all time, as voted on by a panel of experts.

Two entrepreneurs rise from the ashes of Prohibition by staking everything on two liquors - a bitter, bottom-shelf whisky, and a flavorless foreign moonshine - and go on to save an industry and create two of the most popular brands in the country.

Todd hauls a massive machine as he fights his way home in a final showdown with his nemesis, the infamous Asheweig Road; Scooter calls in a local road crew after losing a battle with an angry hill on his return trip along the goat trail.

Bret and Ivy bust through sheets of lake ice to ferry critical equipment to their cabin by boat; Lauro and Virginia use the dog team to haul fresh cut timber from the forest for a log cabin build.

The extreme isolation is beginning to take its toll on the men; a survivalist undertakes a massive cabin project.

Lauro continues his quest to complete the Iditarod through Alaska's frozen interior; Bret and Ivy pursue a bear into dangerously steep terrain.

Two entrepreneurs rise from the ashes of Prohibition by staking everything on two liquors - a bitter, bottom-shelf whisky, and a flavorless foreign moonshine - and go on to save an industry and create two of the most popular brands in the country.

Innovations, from the light bulb to the automobile, change the world; host Peyton Manning unveils the top 10 inventions of all time, as voted on by a panel of experts.

Todd hauls a massive machine as he fights his way home in a final showdown with his nemesis, the infamous Asheweig Road; Scooter calls in a local road crew after losing a battle with an angry hill on his return trip along the goat trail.

Bret and Ivy bust through sheets of lake ice to ferry critical equipment to their cabin by boat; Lauro and Virginia use the dog team to haul fresh cut timber from the forest for a log cabin build.

The extreme isolation is beginning to take its toll on the men; a survivalist undertakes a massive cabin project.

Todd hauls a massive machine as he fights his way home in a final showdown with his nemesis, the infamous Asheweig Road; Scooter calls in a local road crew after losing a battle with an angry hill on his return trip along the goat trail.

Bret and Ivy bust through sheets of lake ice to ferry critical equipment to their cabin by boat; Lauro and Virginia use the dog team to haul fresh cut timber from the forest for a log cabin build.

The extreme isolation is beginning to take its toll on the men; a survivalist undertakes a massive cabin project.

Innovations, from the light bulb to the automobile, change the world; host Peyton Manning unveils the top 10 inventions of all time, as voted on by a panel of experts.

Lauro continues his quest to complete the Iditarod through Alaska's frozen interior; Bret and Ivy pursue a bear into dangerously steep terrain.

Two entrepreneurs rise from the ashes of Prohibition by staking everything on two liquors - a bitter, bottom-shelf whisky, and a flavorless foreign moonshine - and go on to save an industry and create two of the most popular brands in the country.

Lauro continues his quest to complete the Iditarod through Alaska's frozen interior; Bret and Ivy pursue a bear into dangerously steep terrain.

Picking their way through Ontario, the guys may have hit the jackpot on a sprawling property full of outbuildings.

The guys are ready to drop big bucks on some treasures in British Columbia.

Danny and the team take on a 1967 Cadillac for a high-end client; musician Jeff Blando stops by the shop to get the finishing touch on a chopper that Danny built for him years ago; Ryan and Roli spot a Buick Skylark with a Hollywood history.

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Picking their way through Ontario, the guys may have hit the jackpot on a sprawling property full of outbuildings.

The guys are ready to drop big bucks on some treasures in British Columbia.

While salvaging an old hotel in the heart of the city, Ted pulls out all the stops to confirm his suspicion there was once a popular underground nightclub where forgotten treasures may still hide.

From G.I. Joe to the Slinky, host Peyton Manning counts down the top ten toys, as voted by a panel of experts; discussing which childhood favorite will be crowned the best of the best.

From the Roman Colosseum to Wrigley Field, host Peyton Manning counts down the top 10 stadiums as voted on by a panel of experts.

Innovations, from the light bulb to the automobile, change the world; host Peyton Manning unveils the top 10 inventions of all time, as voted on by a panel of experts.

Host Peyton Manning counts down the top 10 sports cars of all time as voted on by a panel of experts.

Peyton Manning counts down the entrepreneurs whose contributions to media, tech and finance have earned them the title Titans of Industry; from Oprah Winfrey to Jeff Bezos to JP Morgan, which titan is deemed the greatest by the panel?

From Evel Knievel to Harry Houdini, host Peyton Manning counts down the top 10 daredevils of all time, as voted on by a panel of experts.

Sometimes there are names that are almost inseparable, including Venus and Serena, Ali and Cosel, Lennon and McCartney; Peyton Manning counts down the top 10 dynamic duos of all time, as voted on by a panel of experts.

Host Peyton Manning takes viewers through the top 10 candies of all time.

From G.I. Joe to the Slinky, host Peyton Manning counts down the top ten toys, as voted by a panel of experts; discussing which childhood favorite will be crowned the best of the best.

From the Roman Colosseum to Wrigley Field, host Peyton Manning counts down the top 10 stadiums as voted on by a panel of experts.

Innovations, from the light bulb to the automobile, change the world; host Peyton Manning unveils the top 10 inventions of all time, as voted on by a panel of experts.

Host Peyton Manning counts down the top 10 sports cars of all time as voted on by a panel of experts.

Peyton Manning counts down the entrepreneurs whose contributions to media, tech and finance have earned them the title Titans of Industry; from Oprah Winfrey to Jeff Bezos to JP Morgan, which titan is deemed the greatest by the panel?

From Evel Knievel to Harry Houdini, host Peyton Manning counts down the top 10 daredevils of all time, as voted on by a panel of experts.

Sometimes there are names that are almost inseparable, including Venus and Serena, Ali and Cosel, Lennon and McCartney; Peyton Manning counts down the top 10 dynamic duos of all time, as voted on by a panel of experts.

Host Peyton Manning takes viewers through the top 10 candies of all time.

From G.I. Joe to the Slinky, host Peyton Manning counts down the top ten toys, as voted by a panel of experts; discussing which childhood favorite will be crowned the best of the best.

From the Roman Colosseum to Wrigley Field, host Peyton Manning counts down the top 10 stadiums as voted on by a panel of experts.

A man predicts a deadly plane crash before it happens; a child has a premonition of a volcanic eruption; a California man foretells major U.S. events.

Three men disappear from a yacht in Australia; people vanish from a remote Vermont mountaintop; a pilot is stalked by unidentified aircraft.

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Paid programming.

Gold, the shiny precious metal that has been cherished through all recorded time, is vital to the modern world; if gold was suddenly stripped away, the technological and cultural world would be left reeling.

A man predicts a deadly plane crash before it happens; a child has a premonition of a volcanic eruption; a California man foretells major U.S. events.

Three men disappear from a yacht in Australia; people vanish from a remote Vermont mountaintop; a pilot is stalked by unidentified aircraft.

Robin Roberts narrates this insightful documentary that explores the leadership, sacrifice and valor of the 15th National Guard, which would become a part of the 369th Infantry and one of WWI's best military regiments.

The dramatic tale of Owens' athletic dedication, perseverance and triumph over Hitler's Aryan supremacy agenda.

The powerful story of the first all-Black tank unit to serve in combat in U.S. military history; under Gen. George Patten's command, the 761st battalion fought heroically throughout WWII.

Robin Roberts narrates this insightful documentary that explores the leadership, sacrifice and valor of the 15th National Guard, which would become a part of the 369th Infantry and one of WWI's best military regiments.

Exploring the untold stories of the triumphs and challenges of Black Canadian and Caribbean soldiers who served in the Canadian Army at the height of Nazism during World War II, and the sacrifices made by Canadian soldiers of all backgrounds.

How John Lewis led the march across the Edmund Pettus Bridge on Bloody Sunday.

The dramatic tale of Owens' athletic dedication, perseverance and triumph over Hitler's Aryan supremacy agenda.

The powerful story of the first all-Black tank unit to serve in combat in U.S. military history; under Gen. George Patten's command, the 761st battalion fought heroically throughout WWII.

Exploring the untold stories of the triumphs and challenges of Black Canadian and Caribbean soldiers who served in the Canadian Army at the height of Nazism during World War II, and the sacrifices made by Canadian soldiers of all backgrounds.

How John Lewis led the march across the Edmund Pettus Bridge on Bloody Sunday.

The powerful story of the first all-Black tank unit to serve in combat in U.S. military history; under Gen. George Patten's command, the 761st battalion fought heroically throughout WWII.

The powerful story of the first all-Black tank unit to serve in combat in U.S. military history; under Gen. George Patten's command, the 761st battalion fought heroically throughout WWII.

Darrell and Lisa head into Alberta and onto a trail nicknamed The Death Road; Art faces off with the ice crossing where he nearly lost his life last season; Todd takes rookie Steph Custance under his wing as she embarks on her first journey.

Dennis' hunt for gold proves unsuccessful; Ken breaks a machine in his haste to sluice; Karl's season is threatened by floods.

Joe loses it after a screw-up; Devon's job offer; a Brit and his dog start a new life.

Darrell and Lisa head into Alberta and onto a trail nicknamed The Death Road; Art faces off with the ice crossing where he nearly lost his life last season; Todd takes rookie Steph Custance under his wing as she embarks on her first journey.

Dennis' hunt for gold proves unsuccessful; Ken breaks a machine in his haste to sluice; Karl's season is threatened by floods.

Joe loses it after a screw-up; Devon's job offer; a Brit and his dog start a new life.

Fitting into the clean-cut roles that comedians occupied in the 1950s, two up-and-coming stand-ups make names for themselves; as society shifts and counter-culture movements take hold, both men realize they need to adapt their comedy.

The top-selling candy days of the year revolve around Easter, Valentine's Day and Halloween, and it all started with a few bold pioneers.

The team follows a trail of explosive evidence connecting UFOs to the most destructive weapons in human history. A former U.S Air Force Colonel discloses an encounter on Christmas Eve 1980 at a base hiding a secret stockpile of nuclear weapons.

Andy and Paul return to Miller Ranch, site of numerous cattle mutilations and highway deaths to poke the hornet's nest at the bridge that has been dubbed The Miller Triangle by the Skinwalker team and find more evidence that the two sites are linked.

When the team deploys a cutting edge new technology on Skinwalker Ranch to study the mysterious Bubble, it leads to an unsettling revelation.

Lauro confronts -40° weather, a broken sled and exhausted dogs on the Iditarod Trail while running down the frozen Yukon River; Bret and Ivy haul beaver to finish the season; Tom and Jack carve a traditional peace pipe from rare catlinite stone.

The top-selling candy days of the year revolve around Easter, Valentine's Day and Halloween, and it all started with a few bold pioneers.

Fitting into the clean-cut roles that comedians occupied in the 1950s, two up-and-coming stand-ups make names for themselves; as society shifts and counter-culture movements take hold, both men realize they need to adapt their comedy.

The team follows a trail of explosive evidence connecting UFOs to the most destructive weapons in human history. A former U.S Air Force Colonel discloses an encounter on Christmas Eve 1980 at a base hiding a secret stockpile of nuclear weapons.

Andy and Paul return to Miller Ranch, site of numerous cattle mutilations and highway deaths to poke the hornet's nest at the bridge that has been dubbed The Miller Triangle by the Skinwalker team and find more evidence that the two sites are linked.

When the team deploys a cutting edge new technology on Skinwalker Ranch to study the mysterious Bubble, it leads to an unsettling revelation.

The team follows a trail of explosive evidence connecting UFOs to the most destructive weapons in human history. A former U.S Air Force Colonel discloses an encounter on Christmas Eve 1980 at a base hiding a secret stockpile of nuclear weapons.

Andy and Paul return to Miller Ranch, site of numerous cattle mutilations and highway deaths to poke the hornet's nest at the bridge that has been dubbed The Miller Triangle by the Skinwalker team and find more evidence that the two sites are linked.

When the team deploys a cutting edge new technology on Skinwalker Ranch to study the mysterious Bubble, it leads to an unsettling revelation.

Fitting into the clean-cut roles that comedians occupied in the 1950s, two up-and-coming stand-ups make names for themselves; as society shifts and counter-culture movements take hold, both men realize they need to adapt their comedy.

Lauro confronts -40° weather, a broken sled and exhausted dogs on the Iditarod Trail while running down the frozen Yukon River; Bret and Ivy haul beaver to finish the season; Tom and Jack carve a traditional peace pipe from rare catlinite stone.

The top-selling candy days of the year revolve around Easter, Valentine's Day and Halloween, and it all started with a few bold pioneers.

Lauro confronts -40° weather, a broken sled and exhausted dogs on the Iditarod Trail while running down the frozen Yukon River; Bret and Ivy haul beaver to finish the season; Tom and Jack carve a traditional peace pipe from rare catlinite stone.

Rookie Steph Custance tries to complete the first ice road mission of her career; Alex Debogorski runs into a road block as temperatures soar; Art Burke attempts to deliver to a new community; Darrell Ward braves an unregulated winter road.

Ken takes a roll in his bulldozer; beavers threaten Big Al's operation; Karl's loader springs a leak.

Joe's flight is suspended; an unexpected injury; a risky cross-Canada journey to Turkey.

Rookie Steph Custance tries to complete the first ice road mission of her career; Alex Debogorski runs into a road block as temperatures soar; Art Burke attempts to deliver to a new community; Darrell Ward braves an unregulated winter road.

Ken takes a roll in his bulldozer; beavers threaten Big Al's operation; Karl's loader springs a leak.

Joe's flight is suspended; an unexpected injury; a risky cross-Canada journey to Turkey.

In the 1970s, two maverick broadcasters take a different approach, challenging their bosses, the rules and polite society to help create a new genre: talk radio.

Two icons compete for America's coffee drinkers and forever change a worldwide, multi-billion-dollar industry.

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.

Robin Roberts narrates this insightful documentary that explores the leadership, sacrifice and valor of the 15th National Guard, which would become a part of the 369th Infantry and one of WWI's best military regiments.

The great-great-granddaughter of one of Canada's first Black servicemen hunts down a missing relic; across the Prairies, a historical tailor decodes the deathbed confession of his grandfather, a World War II veteran.

Lauro nears the end of the Iditarod, crossing 260 miles of ice along the Bering Sea coast to reach the finish line in Nome, Alaska; Marty and his friend Dave haul supplies for a cabin into the backcountry; Tom and Will build an elk hide tipi.

Two icons compete for America's coffee drinkers and forever change a worldwide, multi-billion-dollar industry.

In the 1970s, two maverick broadcasters take a different approach, challenging their bosses, the rules and polite society to help create a new genre: talk radio.

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.

Robin Roberts narrates this insightful documentary that explores the leadership, sacrifice and valor of the 15th National Guard, which would become a part of the 369th Infantry and one of WWI's best military regiments.

The great-great-granddaughter of one of Canada's first Black servicemen hunts down a missing relic; across the Prairies, a historical tailor decodes the deathbed confession of his grandfather, a World War II veteran.

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.

Robin Roberts narrates this insightful documentary that explores the leadership, sacrifice and valor of the 15th National Guard, which would become a part of the 369th Infantry and one of WWI's best military regiments.

The great-great-granddaughter of one of Canada's first Black servicemen hunts down a missing relic; across the Prairies, a historical tailor decodes the deathbed confession of his grandfather, a World War II veteran.

In the 1970s, two maverick broadcasters take a different approach, challenging their bosses, the rules and polite society to help create a new genre: talk radio.

Lauro nears the end of the Iditarod, crossing 260 miles of ice along the Bering Sea coast to reach the finish line in Nome, Alaska; Marty and his friend Dave haul supplies for a cabin into the backcountry; Tom and Will build an elk hide tipi.

Two icons compete for America's coffee drinkers and forever change a worldwide, multi-billion-dollar industry.

Lauro nears the end of the Iditarod, crossing 260 miles of ice along the Bering Sea coast to reach the finish line in Nome, Alaska; Marty and his friend Dave haul supplies for a cabin into the backcountry; Tom and Will build an elk hide tipi.

Darrell Ward faces a trail known as "the obstacle course"; Todd Dewey strives to clear a melting ice bridge; Alex Debogorski hauls an oversized fuel tank; Art Burke stumbles onto an ice crossing in the middle of the night.

Ken battles frigid conditions and disappointing returns; an ancient waterfall proves problematic to Cam; Karl's mechanical skills are put to the test.

The Turkey waterbomber crew is rattled; a North Atlantic crossing; AJ gets married.

Darrell Ward faces a trail known as "the obstacle course"; Todd Dewey strives to clear a melting ice bridge; Alex Debogorski hauls an oversized fuel tank; Art Burke stumbles onto an ice crossing in the middle of the night.

Ken battles frigid conditions and disappointing returns; an ancient waterfall proves problematic to Cam; Karl's mechanical skills are put to the test.

The Turkey waterbomber crew is rattled; a North Atlantic crossing; AJ gets married.

A struggling New York actor, brushed aside, bets on himself to write, and star in a movie; by challenging the ideas of what it means to be a leading man at the time, he gives himself a fighting chance in Hollywood.

A look at some staples of Thanksgiving dinner that weren't around until a few brands used technological advances to reinvent turkey, stuffing, cranberry sauce, pumpkin pie and more; food innovators made each part of the meal accessible.

A Chilean family believes they photographed a real UFO flying over the Andes Mountains; the images of a tall, dark, hairy creature walking through the forest could be proof that Ohio's legendary Grassman exists.

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 returns to his trap line to find it destroyed by wildfire; Mike hunts an elusive herd of Kodiak elk; Lauro and Neil Eklund journey down the Yukon River by log raft on a quest for beaver and fish.

A look at some staples of Thanksgiving dinner that weren't around until a few brands used technological advances to reinvent turkey, stuffing, cranberry sauce, pumpkin pie and more; food innovators made each part of the meal accessible.