History

Joey and Kallie chase down the legendary "Poseidon" through deep water and shattered lines, determined to finally end a decades-long pursuit. Troy and Pickle gamble on an old-timer's hot tip in a remote bayou. Bruce and Anna use rare high-water access to slip into untouched backwoods. Calum fights exhaustion, navigation mishaps, and massive gators alone as he pushes himself to hit his quota. Chase

Skydivers narrowly escape two colliding planes; a father and son are in danger as they drive through a raging wildfire; what to do and what not to do when stalked by a cougar.

Theo Wilson time-travels to the Battle of Stalingrad in 1942, where the underdog Russian army is about to pull off a victory that will turn the tide of the war in favor of Allied forces.

Theo Wilson time-travels to the mid-1800s, where he finds Jesse James; Wilson separates myth from reality in Jesse's career and charts how a thirst for fame, riches and revenge led James toward his fated murder by a member of his own gang.

Theo Wilson travels back in time to Salem, Mass., in 1692, where the village is self-destructing over allegations of witchcraft among dozens of its citizens.

Theo Wilson travels back in time to April 19, 1995, when Oklahoma City is rocked by a two-ton fertilizer bomb shortly after 9 a.m. ; Theo investigates the layers of this complicated story.

Radar falls in love; Margaret celebrates her divorce.

The 4077th's evacuation to a nearby cave poses a big problem for Hawkeye, then Col. Potter becomes aware of it.

A lifelong collector's sprawling property proves to be uniquely challenging for the salvage team as they race to undercover enough valuable treasures to make their long road trip worthwhile; Ron is under pressure to get a vintage truck working.

Mike overhauls a 1955 Belair Wagon in hopes of turning a quick profit, while Avery embarks on an ambitious restoration of a rare 1956 Ford C.O.E.; Mike's betting streak continues.

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 lifelong collector's sprawling property proves to be uniquely challenging for the salvage team as they race to undercover enough valuable treasures to make their long road trip worthwhile; Ron is under pressure to get a vintage truck working.

Mike overhauls a 1955 Belair Wagon in hopes of turning a quick profit, while Avery embarks on an ambitious restoration of a rare 1956 Ford C.O.E.; Mike's betting streak continues.

A Chicago canine unit discovers smugglers; officers enter a high-speed chase in Port Huron; a traveler triggers radiation alarms; bullets in Blaine, Washington.

In the Detroit airport, a family traveling from the UK, may need to corroborate their story. Also, a tip from authorities puts officers at the Chicago International Mail facility on high alert.

Col. Flagg shows up at the 4077th again, convinced that Hawkeye is a Communist sympathizer.

A careless colonel increases the number of seriously wounded soldiers arriving at the compound.

Weapons rank among humanity's most powerful-and wildest-inventions. Some unleash mass destruction, while others are downright bizarre. From launching corpses with trebuchets, to turning animals into killing machines, and missiles guided by pigeons, these are the stories behind history's most outrageous weapons.

A look at whether time travel has already occurred, on purpose or by accident, and scientists who believe it is theoretically possible.

Throughout recorded history, many people have claimed to be able to see the future and can predict, or even influence, events they first witness in their mind's eye.

From strange afflictions to infections that ravage populations, it's frightening to think that one of us can contract dangerous and often deadly diseases.

Col. Flagg shows up at the 4077th again, convinced that Hawkeye is a Communist sympathizer.

A careless colonel increases the number of seriously wounded soldiers arriving at the compound.

Weapons rank among humanity's most powerful-and wildest-inventions. Some unleash mass destruction, while others are downright bizarre. From launching corpses with trebuchets, to turning animals into killing machines, and missiles guided by pigeons, these are the stories behind history's most outrageous weapons.

Is it possible that Apollo 16 astronauts witnessed a UFO during a trip to the Moon?; did an alien craft leave a pattern of burns on a man's body?; are perfectly carved stone spheres discovered in Bosnia proof of extraterrestrials?

From strange afflictions to infections that ravage populations, it's frightening to think that one of us can contract dangerous and often deadly diseases.

Step inside hidden areas where history was steered in secret, from Churchill's wartime bunker, complete with a direct line to FDR concealed inside his private bathroom, to a Soviet weapons base in the desert exposed only by a daring U-2 spy mission.

From a dog's space voyage, to a harrowing story of Arctic survival, to various trips through time; journeys so extraordinary that they are truly unbelievable.

Weapons rank among humanity's most powerful-and wildest-inventions. Some unleash mass destruction, while others are downright bizarre. From launching corpses with trebuchets, to turning animals into killing machines, and missiles guided by pigeons, these are the stories behind history's most outrageous weapons.

Step inside hidden areas where history was steered in secret, from Churchill's wartime bunker, complete with a direct line to FDR concealed inside his private bathroom, to a Soviet weapons base in the desert exposed only by a daring U-2 spy mission.