Secrets Declassified With David Duchovny

In the risky calculus of war, nothing is too strange to try.

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.

David Duchovny exposes a clandestine nuclear blast set off deep below Mississippi soil, secret experiments conducted on citizens in the New York subway system, and a wartime bunker built to trap British spies underground during a Nazi invasion.

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.

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

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.

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.

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.

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.

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

Some rescues read like Hollywood - except they were real. In Operation Halyard, villagers and resistance fighters built an airstrip by hand to spirit stranded airmen out of Nazi territory.

From the 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, when is ``Mission: Impossible`` more than just a movie?

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.

Some of history's boldest missions succeeded because the world was looking the wrong way; the CIA concealed covert missions behind Air America's civilian façade, British intelligence planted a falsified invasion plan on a corpse to mislead Hitler.