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.

Last Updated: 9/6/2026Network: HistoryStatus: Continuing
Cracking the Code
star
0.00
0 votes

#1 - 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.

Ingenious Disguises
star
0.00
0 votes

#2 - Ingenious Disguises

Season 2 - Episode 20 - Aired 8/20/2026

Some disguises hide an individual, others conceal an entire operation; a CIA vaccination campaign masks a global manhunt for the world's most wanted terrorist, while a luxury Red Sea resort operated by Mossad becomes the unlikely front for a mission to smuggle thousands of Sudanese Jews to safety; in wartime Philippines, an American singer uses charm, talent, and deception to outwit occupying forces and help rescue hundreds of POWs.

Cat & Mouse
star
0.00
0 votes

#3 - Cat & Mouse

Season 2 - Episode 19 - Aired 8/13/2026

Some targets are taken by force, others require a game of cat and mouse played out across continents and years of relentless chase; when the DEA fails to corner an international arms dealer, they turn not to a spy, but to a retired bush pilot to lure him out; the CIA hunts an insider from within its own headquarters, and across Europe, the world's most wanted warlord hides in plain sight as a reinvented mystic healer; while the prey changes, the pursuit never does.

Top Secret Tech
star
0.00
0 votes

#4 - Top Secret Tech

Season 2 - Episode 18 - Aired 8/6/2026

Before they become instruments of war, they sound like impossible ideas; an American medical student develops a closed-circuit rebreather that allows Allied frogmen to slip beneath enemy harbors without a single bubble, while U.S. Army engineers create a jeep-mounted nuclear launcher known as the "atomic watermelon"; across the Atlantic, an inventor pitches an aircraft carrier to hunt U-boats, carved from wood pulp and ice; because in war, today's absurdity can become tomorrow's secret weapon.

Spy Gadgets
star
0.00
0 votes

#5 - Spy Gadgets

Season 2 - Episode 17 - Aired 7/30/2026

A broadcast details historical espionage technology and covert surveillance operations; the account examines military tracking sensors used in Vietnam, a nuclear-powered surveillance device placed in the Himalayas and a Soviet listening device concealed within a gift presented to a U.S. ambassador; the documentation highlights how intelligence agencies use disguised tools to gather information during international conflicts.

Hidden Bases
star
0.00
0 votes

#6 - Hidden Bases

Season 2 - Episode 16 - Aired 7/23/2026

A broadcast details secret military architecture and defense installations; the account examines a 112,000-square-foot government bunker built beneath a five-star hotel, a fake wartime town constructed to conceal a factory and a secluded CIA training facility in West Virginia; the documentation highlights the historical methods utilized by intelligence and defense agencies to ensure government continuity and operational security.

Dark Deals
star
0.00
0 votes

#7 - Dark Deals

Season 2 - Episode 15 - Aired 7/16/2026

Some deals are made to announce headlines, while others are steered in the shadows; when the CIA wants to take out the Iraqi Prime Minister, they turn to a 20-year-old law student named Saddam Hussein, while in Guatemala, a banana company colludes with the CIA to topple the country's leader to protect its profits; decades later in Ukraine, a top-secret unit of CIA operatives thwarts Russia's invasion plans, before the world even knows the battle has begun.

High Strangeness
star
0.00
0 votes

#8 - High Strangeness

Season 2 - Episode 14 - Aired 7/9/2026

When conventional tactics fail, governments have been known to test the boundaries of reality; in the darkest days of World War II, Britain turns to an astrologer who claims he can alter the course of war using the power of the stars; in the jungles of Vietnam, U.S. forces turn to dowsing rods and ancient mystical practices to locate enemies hidden underground.

Covert Heists
star
0.00
0 votes

#9 - Covert Heists

Season 2 - Episode 13 - Aired 7/2/2026

Sometimes when governments can't negotiate their way to victory, they steal it; when the KGB sets its sights on a NATO missile, they enlist a smooth-talking German playboy armed with only a wheelbarrow, a carpet and a postage stamp; an Israeli covert operation hijacks 200 tons of uranium on the high seas to fuel a secret nuclear arsenal, while during WWII, the Allies deploy a female agent to steal top-secret naval codes, solely with seductive charm.

Rogue Missions
star
0.00
0 votes

#10 - Rogue Missions

Season 2 - Episode 12 - Aired 6/25/2026

Some missions are so risky, they're denied before they even begin. From a covert Mossad operation to abduct a Nazi war criminal in Argentina-identified through the smallest detail, the shape of his ears-to a chilling CIA plot that used a jazz tour as cover for an assassination attempt in the Congo; to one resistance fighter volunteering to be captured and sent to Auschwitz to reveal the horrors within-these operations are proof that the most dangerous missions are often the most unthinkable.

Masters of Deception
star
0.00
0 votes

#11 - Masters of Deception

Season 2 - Episode 11 - Aired 6/18/2026

To outmaneuver the enemy, you have to sell the illusion. An FBI agent goes so deep undercover he's the best man at a Mafia wedding, while the Stasi deploys a covert network of charmers across borders to win trust and steal secrets. And in Egypt, a German-born Jewish spy poses as a high-flying, champagne-soaked ex-Nazi to infiltrate its missile program for Israel. Different missions, one rule: if they believe you, you're already inside.

Extreme Extractions
star
0.00
0 votes

#12 - 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.

Smoke and Mirrors
star
0.00
0 votes

#13 - 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.

Extraordinary Experiments
star
0.00
0 votes

#14 - 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.

Secret Units
star
0.00
0 votes

#15 - 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.

Secrets of the Skies
star
0.00
0 votes

#16 - 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.

Watch Now:Apple TV
Bizarre Weapons
star
0.00
0 votes

#17 - Bizarre Weapons

Season 2 - Episode 5 - Aired 4/14/2026

From a British scheme to launch airborne balloons against Nazi Germany, to American bats fitted with incendiary devices, to a covert effort to manipulate monsoon rains in Vietnam.

Black Ops
star
0.00
0 votes

#18 - 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.

Buried Secrets
star
0.00
0 votes

#19 - 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.

Top Secret Sites
star
0.00
0 votes

#20 - 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.

Watch Now:Apple TV
Escaping Armageddon
star
0.00
0 votes

#21 - Escaping Armageddon

Season 2 - Episode 1 - Aired 3/17/2026

In the razor’s-edge theater of global brinkmanship, the world has come closer to annihilation than most ever knew.

Unholy Alliances
star
0.00
0 votes

#22 - 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?

Spy Tech
star
0.00
0 votes

#23 - 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.

Deep Space
star
0.00
0 votes

#24 - Deep Space

Season 1 - Episode 8 - Aired 5/23/2025

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.

Dark Science
star
0.00
0 votes

#25 - 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.