Expedition Files - Season 4

First aired: 4/1/2026 12 episodes

Episodes

1. Mysteries of American History

Aired: 4/1/2026

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.

2. Deadly Forecast

Aired: 4/8/2026

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.

3. Fateful Coverups

Aired: 4/15/2026

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?

4. Under Pressure

Aired: 4/22/2026

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.

5. Dark Waters

Aired: 4/29/2026

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.

6. Fact or Fiction?

Aired: 5/6/2026

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

7. Truth Vs. Tabloids

Aired: 5/13/2026

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

8. Who Done It?

Aired: 5/20/2026

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.

9. Larger Than Life

Aired: 5/27/2026

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.

10. You Don't Know Me

Aired: 6/3/2026

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.

11. The Supernatural

Aired: 6/10/2026

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.

12. Smoke and Mirrors

Aired: 6/17/2026

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.