HISTORY 2

As Vancouver Island is pummeled by torrential rains, the remaining teams scramble to avoid freezing flood waters; one team attempts a massive construction project, while another must choose between betraying a family member and tapping out.

The three remaining teams scramble for a long-term advantage; team members run themselves ragged with an elaborate shelter build; a team hazards the freezing waters of the Pacific on their own small craft.

After nearly a month on Vancouver Island, the three remaining teams face existential threats at every turn; one participant is forced to fight a raging fire; rising tensions threaten to end a partnership.

As freezing temperatures punish Vancouver Island, the remaining pairs all face game-changing scenarios; one participant is hit with a crippling illness, while another's temper drives a wedge between him and his teammate.

As time presses on and temperatures drop, the final teams grapple with a strong desire to tap out; however, the $500,000 prize is hard to give up on, and the participants push themselves until one reaches the breaking point.

Never-before-seen moments from Season 4 are revealed as the final three teams describe their experiences on the island; a sneak peek at Season 5 of the series; Kevin Burkhardt hosts.

A behind-the-scenes look at season four of the series, "Alone," during which seven pairs of family members are dropped off miles apart on Northern Vancouver Island; an introduction to the teams includes analysis of what it takes to make the cut.

Family members are dropped off miles apart and must navigate the unforgiving terrain of Northern Vancouver Island to find each other; to win the $500,000 prize, the competitors must build their own shelters and forage for their own food.

As their teammates attempt to set up camp, the hikers find that Vancouver Island's terrain is even more punishing when on the move; the island beats one pair into submission, while another grapples with a devastating accident.

Desperation sinks in as the hikers struggle to make the final push to their teammates; exhaustion leads one participant straight into the path of a predator, and into a dangerous confrontation.

Now that most teams are reunited, they dive into the difficult task of surviving together and feeding two people; meanwhile, the final hiker faces a brutal mountain climb that could dash his hopes of ever making it to camp.

As Vancouver Island is pummeled by torrential rains, the remaining teams scramble to avoid freezing flood waters; one team attempts a massive construction project, while another must choose between betraying a family member and tapping out.

As freezing temperatures punish Vancouver Island, the remaining pairs all face game-changing scenarios; one participant is hit with a crippling illness, while another's temper drives a wedge between him and his teammate.

As time presses on and temperatures drop, the final teams grapple with a strong desire to tap out; however, the $500,000 prize is hard to give up on, and the participants push themselves until one reaches the breaking point.

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.

Big Al's gamble pays off; Bernie argues with his son Justin; Ken and Guillaume sluice before Ken has to leave for his child's birth; Karl's team tries to sluice 200 ounces of gold in a week.

During the training session for the upcoming fire season, Arnie makes an announcement.

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.

Big Al's gamble pays off; Bernie argues with his son Justin; Ken and Guillaume sluice before Ken has to leave for his child's birth; Karl's team tries to sluice 200 ounces of gold in a week.

During the training session for the upcoming fire season, Arnie makes an announcement.

Journalist Tony Harris travels to the Florida coast, a hotspot for UFO sightings; Tony and a team of experts analyze compelling evidence of unidentified aerial phenomena and pass a verdict.

A century ago, shipping packages was slow and shipping overnight was impossible, until two Seattle brothers risk everything to reinvent shipping packages for all; a tenacious Yale graduate creates a world-famous express delivery service.

The team investigates a disturbing pattern of UFOs allegedly appearing near U.S. Air Force bases that house nuclear weapons and nuclear-powered U.S. warships.

When Andy and Paul head to Northern California to investigate one of Brandon Fugal's most intriguing sites -- the notorious energy hotspot of Mt. Shasta; they discover the outrageous lore surrounding the mountain is justified by hard data.

When the team flies a cutting-edge radar device high above Skinwalker Ranch, it reveals shocking new clues about the Bubble and what may be inside the Mesa.

After a military investigator shares his disturbing report about the phenomena on Skinwalker Ranch, the team conducts a laser experiment, which leads to startling results.

A century ago, shipping packages was slow and shipping overnight was impossible, until two Seattle brothers risk everything to reinvent shipping packages for all; a tenacious Yale graduate creates a world-famous express delivery service.

Journalist Tony Harris travels to the Florida coast, a hotspot for UFO sightings; Tony and a team of experts analyze compelling evidence of unidentified aerial phenomena and pass a verdict.

The team investigates a disturbing pattern of UFOs allegedly appearing near U.S. Air Force bases that house nuclear weapons and nuclear-powered U.S. warships.

When Andy and Paul head to Northern California to investigate one of Brandon Fugal's most intriguing sites -- the notorious energy hotspot of Mt. Shasta; they discover the outrageous lore surrounding the mountain is justified by hard data.

When the team flies a cutting-edge radar device high above Skinwalker Ranch, it reveals shocking new clues about the Bubble and what may be inside the Mesa.

The team investigates a disturbing pattern of UFOs allegedly appearing near U.S. Air Force bases that house nuclear weapons and nuclear-powered U.S. warships.

When Andy and Paul head to Northern California to investigate one of Brandon Fugal's most intriguing sites -- the notorious energy hotspot of Mt. Shasta; they discover the outrageous lore surrounding the mountain is justified by hard data.

When the team flies a cutting-edge radar device high above Skinwalker Ranch, it reveals shocking new clues about the Bubble and what may be inside the Mesa.

Journalist Tony Harris travels to the Florida coast, a hotspot for UFO sightings; Tony and a team of experts analyze compelling evidence of unidentified aerial phenomena and pass a verdict.

After a military investigator shares his disturbing report about the phenomena on Skinwalker Ranch, the team conducts a laser experiment, which leads to startling results.

A century ago, shipping packages was slow and shipping overnight was impossible, until two Seattle brothers risk everything to reinvent shipping packages for all; a tenacious Yale graduate creates a world-famous express delivery service.

After a military investigator shares his disturbing report about the phenomena on Skinwalker Ranch, the team conducts a laser experiment, which leads to startling results.

Lisa, Scooter and company driver Muskie Todd team up as a three-truck convoy to take on the notorious Asheweig Road; the trio must work together to survive a looming disaster.

Nika and Chris face a repair they can't afford; Guillaume has trouble while Ken is gone; Karl asks his family for help; Bernie gets a surprise.

An outsider comes in to whip Buffalo into shape; Gord and Sean's DC-3 delivery goes awry.

Lisa, Scooter and company driver Muskie Todd team up as a three-truck convoy to take on the notorious Asheweig Road; the trio must work together to survive a looming disaster.

Nika and Chris face a repair they can't afford; Guillaume has trouble while Ken is gone; Karl asks his family for help; Bernie gets a surprise.

An outsider comes in to whip Buffalo into shape; Gord and Sean's DC-3 delivery goes awry.

Has the US Government been hiding the truth about aliens? Are the recent UAP incidents presented to the US Congress proof that unidentified aerial phenomena are a threat to national security? Journalist Tony Harris and his team of experts will evaluate compelling evidence and pass verdicts on their authenticity.

James Gamble and Harley Procter invent a revolutionary new soap that revolutionizes America and opens up a market to entrepreneurs in the late 1800s, when Americans rarely bathed and deadly diseases were commonplace.

Pablo Escobar's Medellin Cartel become powerful cocaine traffickers; when they go to war with Colombia, the cartel tests their limits.

The Bloods will stop at nothing to fight back against their arch-nemesis, the Crips, making national headlines in the process.

In the 1970s in Colombia, a petty thief rises to become the most powerful criminal in history, unleashing a bloody reign of terror to create the first global drug cartel and become the first billionaire kingpin of the 20th century.

When a lidar scan reveals a dark mass at Homestead Two, the team invites a Rabbi to perform an ancient ritual believed to reveal interdimensional portals, which leads to chilling results.

James Gamble and Harley Procter invent a revolutionary new soap that revolutionizes America and opens up a market to entrepreneurs in the late 1800s, when Americans rarely bathed and deadly diseases were commonplace.

Has the US Government been hiding the truth about aliens? Are the recent UAP incidents presented to the US Congress proof that unidentified aerial phenomena are a threat to national security? Journalist Tony Harris and his team of experts will evaluate compelling evidence and pass verdicts on their authenticity.

Pablo Escobar's Medellin Cartel become powerful cocaine traffickers; when they go to war with Colombia, the cartel tests their limits.

The Bloods will stop at nothing to fight back against their arch-nemesis, the Crips, making national headlines in the process.

In the 1970s in Colombia, a petty thief rises to become the most powerful criminal in history, unleashing a bloody reign of terror to create the first global drug cartel and become the first billionaire kingpin of the 20th century.

Pablo Escobar's Medellin Cartel become powerful cocaine traffickers; when they go to war with Colombia, the cartel tests their limits.

The Bloods will stop at nothing to fight back against their arch-nemesis, the Crips, making national headlines in the process.

In the 1970s in Colombia, a petty thief rises to become the most powerful criminal in history, unleashing a bloody reign of terror to create the first global drug cartel and become the first billionaire kingpin of the 20th century.

Has the US Government been hiding the truth about aliens? Are the recent UAP incidents presented to the US Congress proof that unidentified aerial phenomena are a threat to national security? Journalist Tony Harris and his team of experts will evaluate compelling evidence and pass verdicts on their authenticity.

When a lidar scan reveals a dark mass at Homestead Two, the team invites a Rabbi to perform an ancient ritual believed to reveal interdimensional portals, which leads to chilling results.

James Gamble and Harley Procter invent a revolutionary new soap that revolutionizes America and opens up a market to entrepreneurs in the late 1800s, when Americans rarely bathed and deadly diseases were commonplace.

When a lidar scan reveals a dark mass at Homestead Two, the team invites a Rabbi to perform an ancient ritual believed to reveal interdimensional portals, which leads to chilling results.

The Muskie Creek convoy struggles to recover from disaster after an ice bridge collapses beneath Lisa's truck, tipping her off the road; Scooter launches an unorthodox plan to get them back on track; Todd races out of the wilderness on a deadline.

Breakdowns shut down Chris' mine; Big Al remembers his wife's death; Ken and Guillaume try to save their season; Bernie and his team have a big payoff.

Buffalo re-enacts a WWII bombing in a DC-4; Devan discovers a hole in the C-46 mid-flight.

The Muskie Creek convoy struggles to recover from disaster after an ice bridge collapses beneath Lisa's truck, tipping her off the road; Scooter launches an unorthodox plan to get them back on track; Todd races out of the wilderness on a deadline.

Breakdowns shut down Chris' mine; Big Al remembers his wife's death; Ken and Guillaume try to save their season; Bernie and his team have a big payoff.

Buffalo re-enacts a WWII bombing in a DC-4; Devan discovers a hole in the C-46 mid-flight.

Tony Harris and his team investigate Kansas and Japan for evidence of alien visitations on earth.

The technology battle among international telecommunications companies to produce the most popular cell phone, from flip phones to ringtones to text messaging; Blackberry combines the features of a computer with a cell phone to make a smartphone.

Analyzing if a Korean soldier captured during D-Day fighting for the Nazis was the most captured person in the history of war.

Part 1/2. From the fall of the Berlin Wall to Bill Clinton's groundbreaking campaign strategy, an examination of how technology, media and politics collide during the early 1990s and leads to changes on view in the world today.

A thermal experiment at Homestead Two reveals more evidence of a strange presence, the team is suddenly affected in dangerous and disturbing ways.

The technology battle among international telecommunications companies to produce the most popular cell phone, from flip phones to ringtones to text messaging; Blackberry combines the features of a computer with a cell phone to make a smartphone.

Tony Harris and his team investigate Kansas and Japan for evidence of alien visitations on earth.

Analyzing if a Korean soldier captured during D-Day fighting for the Nazis was the most captured person in the history of war.

Part 1/2. From the fall of the Berlin Wall to Bill Clinton's groundbreaking campaign strategy, an examination of how technology, media and politics collide during the early 1990s and leads to changes on view in the world today.

Analyzing if a Korean soldier captured during D-Day fighting for the Nazis was the most captured person in the history of war.

Part 1/2. From the fall of the Berlin Wall to Bill Clinton's groundbreaking campaign strategy, an examination of how technology, media and politics collide during the early 1990s and leads to changes on view in the world today.

Tony Harris and his team investigate Kansas and Japan for evidence of alien visitations on earth.

A thermal experiment at Homestead Two reveals more evidence of a strange presence, the team is suddenly affected in dangerous and disturbing ways.

The technology battle among international telecommunications companies to produce the most popular cell phone, from flip phones to ringtones to text messaging; Blackberry combines the features of a computer with a cell phone to make a smartphone.

A thermal experiment at Homestead Two reveals more evidence of a strange presence, the team is suddenly affected in dangerous and disturbing ways.

Muskie Creek operations manager Bill Danh sends a six-truck convoy, including Lisa, Scooter, and Todd, on a crucial but near-impossible mission to a remote outpost on the Hudson Bay, traveling the world's longest winter road.

Nika's little brother gets in the way; Big Al is shut down; Ken and Guillaume's plan turns into a disaster; Karl and his crew go to a golf tournament.

Chuck quits due to all the drama and Joe clashes with maintenance when a sale is delayed.

Muskie Creek operations manager Bill Danh sends a six-truck convoy, including Lisa, Scooter, and Todd, on a crucial but near-impossible mission to a remote outpost on the Hudson Bay, traveling the world's longest winter road.

Nika's little brother gets in the way; Big Al is shut down; Ken and Guillaume's plan turns into a disaster; Karl and his crew go to a golf tournament.

Chuck quits due to all the drama and Joe clashes with maintenance when a sale is delayed.

Tony Harris and his panel of experts investigate UFO hotspots around the globe and pass a verdict.

A database software engineer is inspired to create a bigger, family-friendly video store, Blockbuster; an opening appears for two software executives in California to take on the media giant with their online subscription service, Netflix.

Steve works on a Roller Skate Car from the 70s; Dale helps restore a rare 1929 Harley Davidson JDH; Bodie tries to fix a 1930s Penny Scale for a local soda shop.

Part 2/2. An exploration of key events in the 1990s, including the Monica Lewinsky scandal, the rise of gay rights, the fall of traditional media, and the expansion of a global terror network.

An investigator presents the team with evidence of a mysterious cavern system running beneath the ranch.

A database software engineer is inspired to create a bigger, family-friendly video store, Blockbuster; an opening appears for two software executives in California to take on the media giant with their online subscription service, Netflix.

Tony Harris and his panel of experts investigate UFO hotspots around the globe and pass a verdict.

Steve works on a Roller Skate Car from the 70s; Dale helps restore a rare 1929 Harley Davidson JDH; Bodie tries to fix a 1930s Penny Scale for a local soda shop.

Part 2/2. An exploration of key events in the 1990s, including the Monica Lewinsky scandal, the rise of gay rights, the fall of traditional media, and the expansion of a global terror network.

Steve works on a Roller Skate Car from the 70s; Dale helps restore a rare 1929 Harley Davidson JDH; Bodie tries to fix a 1930s Penny Scale for a local soda shop.

Part 2/2. An exploration of key events in the 1990s, including the Monica Lewinsky scandal, the rise of gay rights, the fall of traditional media, and the expansion of a global terror network.