The BEST episodes of Secrets Declassified with David Duchovny
Every episode of Secrets Declassified with David Duchovny ever, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Secrets Declassified with David Duchovny!
David Duchovny will reveal the latest evidence behind some of the government’s most secretive activities that have been declassified throughout history.
#1 - Top Secret Sites
Season 2 - Episode 2 - Aired 3/24/2026
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.
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#2 - Buried Secrets
Season 2 - Episode 3 - Aired 3/31/2026
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.
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#4 - Black Ops
Season 2 - Episode 4 - Aired 4/7/2026
A French Resistance operative hides explosives in baguettes to cripple a Nazi factory, an American soldier parachutes behind enemy lines to destroy critical supply routes, and Ukrainian forces deploy AI-guided drones to strike a Russian bomber fleet. Across generations, David Duchovny takes us behind these covert operations propelled by the courage and calculation meant to alter the course of history.
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#6 - Extreme Missions
Season 1 - Episode 3 - Aired 4/18/2025
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.
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#7 - Mind Games
Season 1 - Episode 5 - Aired 5/2/2025
Imagine a world where you could be compelled to do anything, and everything, your government orders. That's not just a post-apocalyptic worst-case scenario, but 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. 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.
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#8 - Dark Science
Season 1 - Episode 7 - Aired 5/16/2025
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 bio-weapons.
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#9 - Spy Tech
Season 1 - Episode 9 - Aired 5/30/2025
From the seemingly innocuous children's toy engineered to save an informant, to hirsute-inspired movie disguises, your government's most clandestine inventions are never what you would suspect, and that's exactly why no one never saw them coming.
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#11 - Strange Weapons
Season 1 - Episode 4 - Aired 4/25/2025
While wars may be won by men, they’re fought with weapons–and every country wanted to leave nothing to chance. 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.
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#12 - Smoke and Mirrors
Season 2 - Episode 9 - Aired 5/12/2026
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, and "Agent Sonya" blended into English suburbia while funneling atomic secrets to Moscow. David Duchovny takes us into the long-spun elaborate tales governments have employed to blanket their boldest missions, showing us how the illusion works.
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#13 - Secrets of the Skies
Season 1 - Episode 1 - Aired 4/4/2025
Forget the moon or the stars – every government has even bigger designs in the race to dominate the furthest corners of the sky. Uncover 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, and a daring Israeli heist to steal a cutting-edge fighter jet – right from under their enemies’ noses.
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#14 - Deep Cover
Season 1 - Episode 6 - Aired 5/9/2025
The dangerous, emotional, and arduous toll of stealth ops has never been felt more deeply than by those who adopted completely separate personas to integrate themselves into a shadowy underworld. From "The Pond," an intelligence operation so secret the CIA was kept in the dark, to a luxury Red Sea diving resort covertly operated by Mossad agents, to the British security services' daring rescue of a double agent in Moscow, these undercover smokescreens were all driven by daring agents in service of executing a greater purpose.
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#15 - Extreme Extractions
Season 2 - Episode 10 - Aired 6/11/2026
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, while Operation Mount Hope saw American forces steal a Soviet helicopter from the African desert under cover of darkness. Decades earlier, the SAS hijacked a train in occupied Italy to liberate 200 prisoners - an extraordinary feat that proved extraction can be as daring as any assault.
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#16 - Black Sites
Season 1 - Episode 2 - Aired 4/11/2025
What lies beneath? David Duchovny takes us into the top-secret government bases and the clandestine operations they were built to conceal. Discover 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.
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#17 - Extraordinary Experiments
Season 2 - Episode 8 - Aired 5/5/2026
When science meets national security, the results can be staggering; the secretive flights of Project Argus, that sent nuclear warheads into space to test whether radiation could cripple Soviet weapons, while Operation LAC covertly released chemical agents over American communities to simulate biological warfare; inside Stalin's secretive laboratory, even human waste became intelligence, analyzed to decipher the minds of adversaries - proof that no angle was too extraordinary to explore.
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#18 - Unholy Alliances
Season 1 - Episode 10 - Aired 6/6/2025
They say better the devil you know, but what happens when you have to hold hands with him? When governments strike dark deals with cults, mobs, and even sworn enemies, frosty relationships and mounting tensions are tested head on. From the CIA's attempt to enlist the Chicago Mob to assassinate Castro, to the only World War II battle where U.S. troops fought alongside the German Army, to Vladimir Putin's recruitment of a convicted murderer as his personal assassin, which sacrifices are worth the bigger picture?
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#19 - Cracking the Code
Season 2 - Episode 6 - Aired 4/21/2026
When secrecy can be the key to survival, codebreaking becomes a battlefield of its own. A stranded American pilot in Vietnam is rescued through a code built around familiar golf courses, while Navajo Code Talkers transmit messages that help turn the tide in the Pacific during World War II. David Duchovny breaks down every breakthrough where a strategist turned language into leverage.
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#20 - Secret Units
Season 2 - Episode 7 - Aired 4/28/2026
Behind official policy often stand unofficial actors. Discover the audacious operations of Red Cell, the covert Navy SEAL team that staged attacks on U.S. bases to expose deadly weaknesses; "The Shop," the CIA's clandestine cadre of expert thieves and lock pickers who stole secrets worldwide; and the Alamo Scouts, the elite World War II special forces whose exploits remained a hidden chapter of history for decades. These units thrived where denial was policy, kept in the dark.
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