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TV series

Expedition Files

Latest episode

S4 E12 · Smoke and Mirrors

About Expedition Files

Expedition Files is a mystery and action & adventure TV series that premiered on Discovery on October 30, 2024. It has 4 seasons and 32 episodes so far and is still airing new episodes. The latest episode, Season 4 Episode 12 "Smoke and Mirrors", aired on June 17, 2026.

Adventurer Josh Gates travels through history on a search to uncover new evidence and answers to the world’s most captivating and unexplained mysteries.

  • Mystery
  • Action & Adventure
  • Documentary

Last updated

Episodes

32 episodes · 4 seasons

Season 1

2024 · 6 episodes · Last episode: 1 year ago

Expedition Files Season 1 release dates →
  1. Expedition Files S1 E6 still E6

    6. Mysterious Relics

    Finale

    A new investigation into the Shroud of Turin, a cloth said to have covered Jesus' body, reveals clues toward its authenticity. Modern tools are used to analyze photos of ghosts from the 1800s.

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    5. Code Breakers

    Cryptic clues left by the Zodiac Killer are finally deciphered, leading to a prime suspect. The location of Forrest Fenn's million-dollar buried treasure is revealed. The Voynich Manuscript, a text that possibly explains the origins of life, is decoded.

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    4. Lost Civilizations

    In the 16th century, settlers of Roanoke vanished without a trace. New evidence finally reveals what happened. Archaeologists investigate what destroyed the original Sin City, Sodom. A bold new theory suggests Stonehenge may be more than it seems.

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    3. Tragic Endings

    Josh Gates investigates whether an ancient curse killed the explorers who discovered King Tut's tomb, the strange and untimely demise of nine students hiking in Siberia, and the mysterious disappearance of an influencer in the Nevada desert.

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    2. Monsters Unmasked

    New information reveals Jack the Ripper's identity. DNA suggests the existence of a Yeti. Max Headroom hijacks a live broadcast, shocking the world.

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    1. Invisible Enemies

    Josh Gates examines an alleged alien abduction, the bizarre death of an American hero's son, and invisible attacks made upon CIA operatives in Cuba

Season 2

2025 · 6 episodes · Last episode: 1 year ago

Expedition Files Season 2 release dates →
  1. Expedition Files S2 E6 still E6

    6. Lost and Found

    Finale

    The true identity of infamous plane hijacker D.B. Cooper may finally be revealed. The fate of Michael Rockefeller, lost heir to the Rockefeller fortune, is exposed. The car in which James Dean died might not be missing anymore.

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    5. Mysterious Phenomena

    Josh Gates looks at some of history's most intriguing hoaxes and unexplained events, including the Amityville Horror, the strange fate of a military submarine crew, and a phenomenon in which people's body fat causes them to burn alive.

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    4. Identity Crises

    New evidence suggests the infamous outlaw Billy the Kid may have lived to old age under an alias. Modern scholars explore the true identity of the Man in the Iron Mask. After their UFO encounter, Betty and Barney Hill were forever changed.

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    3. Family Secrets

    Generations later, the truth of serial killer H.H. Holmes's death may be exposed by one of his descendants. Did the government conspire with the mafia about a mysterious helicopter crash? How might the youngest Romanov daughter have escaped slaughter?

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    2. Deadly Adventures

    Josh Gates investigates several mysterious tragedies and downfalls. An expedition crew goes insane, turning cannibalistic; an explorer searches for a lost city in the Brazilian rainforest; an aspiring young actress falls victim to a deranged killer.

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    1. Conspiracy Theories

    Josh Gates investigates shocking conspiracy theories, including that the Titanic was sunk by more than just an iceberg, the true story behind the death of Harry Houdini, and lost Civil War Gold that spawned a lawsuit against the FBI.

Season 3

2025 · 8 episodes · Last episode: 9 months ago

Expedition Files Season 3 release dates →
  1. Expedition Files S3 E8 still E8

    8. History Got It Wrong

    Finale

    Was the Hindenburg truly destroyed by accident or by sabotage? Could the famous Patterson-Gimlin Bigfoot footage hold clues that only modern analysis can define? What really happened when 50,000 Persian soldiers disappeared without a trace in 524 B.C.?

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    7. Mysterious Endings

    Using modern analysis and a "virtual time machine" to explore three distinct historical or scientific mysteries under a single theme.

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    6. Strange but True

    A real child whose possession inspired "The Exorcist"; a master con artist who left a trail of deception (and maybe murder); and an ancient army defeated by hallucinogenic honey, these three stories prove that truth can outmatch fiction.

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    5. Behind the Myth

    High on Everest's icy slopes, two climbers vanish into legend. In a quiet West Virginia town, a ghost demands justice from beyond the grave. And learn the real story of Mata Hari -- the exotic dancer condemned as a German spy.

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    4. Lost Treasures

    Josh hunts down the world's most elusive treasures. What became of Konigsberg Castle's Amber Room, stolen by the Nazis? Could a lost hard drive in a British landfill hold millions in Bitcoin? Did King Solomon's legendary mines ever exist?

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    3. Time Reveals All

    Over 80 years ago, a mysterious body was found on a beach, accompanied by only a cryptic note. The Trojan War and the Trojan Horse may not be mythical after all. And new evidence may prove Shakespeare didn't author his own works.

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    2. Madness Explained

    Was witchcraft at work during the Salem Witch Trials, or psychological illness? Did Britain's famous UFO sighting by military officials have a more earthly explanation? Who's really responsible for the murder of the "Mad Monk" of Russia?

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    1. Vanished: Jimmy Hoffa, Holy Grail, Inventor Rudolf Diesel

    What really happened to union boss Jimmy Hoffa? Could modern technology finally prove the existence of the Holy Grail? And did inventor Rudolf Diesel really die at sea, or did he stage his own disappearance?

Season 4

2026 · 12 episodes · Last episode: 4 months ago

Expedition Files Season 4 release dates →
  1. Expedition Files S4 E12 still E12

    12. Smoke and Mirrors

    Finale

    Josh Gates explores new evidence reshaping history's mysteries, a fresh analysis of Edgar Allan Poe's death, a novel take on Ponce de León's quest for the Fountain of Youth, and DNA evidence reviving the murder case of Dr. Crippen's wife.

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    11. The Supernatural

    Josh Gates explores the supernatural, from Nikola Tesla's mysterious "Death Ray", to a message from a Sicilian nun believed to be of demonic origin. Plus, scientists uncover the explanation behind the Oracle of Delphi's prophetic visions.

  3. Expedition Files S4 E10 still E10

    10. You Don't Know Me

    Josh Gates explores hidden identities, from a 50-year-old cold case about a mysterious woman, new evidence that could rewrite the account of Judas' betrayal of Jesus, and the shocking tale of a teenager claiming to be a lost German prince.

  4. Expedition Files S4 E9 still E9

    9. Larger Than Life

    Expedition Files reveals shocking new secrets hidden in our world's most captivating mysteries. With three stories sharing one theme per episode, Josh Gates uncovers stunning revelations, recreating pivotal historical moments in his virtual time machine.

  5. Expedition Files S4 E8 still E8

    8. Who Done It?

    Josh Gates investigates three of history's most baffling mysteries, uncovering the truth behind the death of explorer Meriwether Lewis, a possible plot around Dag Hammarskjöld's 1961 plane crash, and the vanishing of Judge Joseph Crater.

  6. Expedition Files S4 E7 still E7

    7. Truth Vs. Tabloids

    Josh investigates Jim Morrison's death, a "mermaid" in a Japanese temple and an alien abduction claim.

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    6. Fact or Fiction?

    Josh Gates investigates Dracula, Cold War psychic spying, and Spartacus.

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    5. Dark Waters

    Josh Gates investigates three aquatic mysteries: the Kraken, Lake Lanier and Atlantis. From terrifying sailor lore, to a deadly lake's dark past, and a lost city beneath the sea, he searches for evidence behind legends shaped by fear, myth and history.

  9. Expedition Files S4 E4 still E4

    4. Under Pressure

    Josh Gates reopens cases where the truth stayed buried -- he exposes new clues, shaken alibis, and explosive revelations that challenge everything that we thought we knew about Noah's Ark, the terror of anthrax attacks, and Bugsy Siegel's murder.

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    3. Fateful Coverups

    From a secret World War II unit that deceived Nazis, to the alleged crimes of the Knights Templar, and a royal death tied to a scandal, Josh Gates explores mysteries built on coverups. Was the truth buried to protect power, reputation, and empires?

  11. Expedition Files S4 E2 still E2

    2. Deadly Forecast

    Josh Gates explores three mysteries shaped by extreme weather, the disappearance of the Donner Party in Sierra Nevada blizzards, secrets of an Arctic missile base entombed in ice, and the Mary Celeste. a ghost ship adrift in the Atlantic.

  12. Expedition Files S4 E1 still E1

    1. Mysteries of American History

    Josh Gates explores American history, including a shocking theory that John Wilkes Booth escaped justice -- only to meet a far stranger fate. Learn myth-busting truths behind Paul Revere's midnight ride and a U.S. Navy sub that vanished in the Cold War.

Cast & crew

  • Sami Jarroush

    Self - Historian

Expedition Files FAQ

When is the next episode of Expedition Files?

A date for the next episode of Expedition Files hasn't been announced yet. Follow Expedition Files in the Streambay app and you'll be notified as soon as a new episode airs.

When did the latest episode of Expedition Files come out?

The most recent episode of Expedition Files, Season 4 Episode 12 "Smoke and Mirrors", aired on June 17, 2026.

How many seasons of Expedition Files are there?

Expedition Files has 4 seasons with 32 episodes in total.

When did Expedition Files first air?

Expedition Files first aired on Discovery on October 30, 2024.

How do I get notified when new episodes of Expedition Files are released?

Download the Streambay app, follow Expedition Files, and you'll get a push notification the moment each new episode is released.

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