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HISTORYCHANNEL

Watch over 2 000 of HISTORY’s most fascinating documentaries and series  anytime  commercial-free.

HISTORY VAULT

When governments strike dark deals with cults, mobs and even sworn enemies, frosty relationships and mounting tensions are tested head on.

Secrets Declassified With David Duchovny

Unholy Alliances

From the seemingly innocuous children's toy engineered to save an informant, to hirsute-inspired movie disguises, the government's most clandestine inventions are never what one would suspect, and that's exactly why no one never saw them coming.

Spy Tech

Glimpses into NASA's covert plan to blow up the moon with a nuclear warhead, the Soviet Union's cover-up of history's deadliest space disaster, and how U.S. attempts to put spies in orbit paved the way for the first space station.

Deep Space

Stalin's gruesome trials to create a hybrid human-ape super army; the eerie reason East Germany's Stasi collected the scents of dissidents in airtight jars; how the CIA uncovered a secret Soviet island devoted to developing deadly bioweapons.

Dark Science

Undercover smokescreens driven by daring agents in service of executing a greater purpose.

Deep Cover

At one in point in time, the reality of state-run programs designed to warp and control minds, both in the lab and on the battlefield existed. From the CIA's decades-long pursuit of the perfect truth serum to the U.S. Army's secret PsyOps in Vietnam, mind games have long been at play among countries, its enemies, and even its own citizens--every one a more alarming deception than the next.

Mind Games

Teetering between the apocalyptic and absurd, declassified records will unveil the top secret weapons programs that attempted to bring down the world, uncovering the Soviet atomic test that shook the Earth with a force 1,500 times more powerful than the Hiroshima bomb, the CIA's creation of a gun that fired a shellfish-harvested toxin, and the Allies' bizarre secret plan to end World War II by feminizing Hitler.

Strange Weapons

When is Mission: Impossible more than just a movie? From the gaspingly record-shattering depths submarine divers have plunged to tap a secret Soviet communication line to the Special Ops team of suicidal soldiers sent to hand-deploy A-bombs in enemy territory, newly uncensored evidence will reveal the lengths that the few and the elite have gone to within the most hostile lands, all in the name of completing the mission.

Extreme Missions

Discovering a deadly poison lab operated by the Soviet Union's infamous "Doctor Death," a vast nuclear missile site buried beneath the Greenland ice sheet, and the U.S. government's doomsday bunker concealed inside a hollowed-out mountain.

Black Sites

Uncovering a plane crash in North Carolina that almost triggered nuclear Armageddon; the story of a UFO attack on a U.S. missile base that was suppressed for decades; a daring Israeli heist to steal a cutting-edge fighter jet.

Secrets of the Skies

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Explores and reveals newly available evidence about declassified government activities throughout history.

S1 E4 | Strange Weapons