Expedition Unknown Episodes

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Season 4, Episode 1

Viking Secrets

Josh investigates how a group of Norse tribesman gained power in medieval Europe. His search for answers begins in their one-time home base of Denmark and continues on to the first place they expanded off the continent, the remote island of Iceland.

Season 4, Episode 2

Vikings in America

Josh traces the westward expansion of the Vikings into North America.

Season 4, Episode 3

Origins of Stonehenge

Josh travels to Great Britain to explore the origins of Stonehenge.

Season 4, Episode 4

The Secret

Josh searches for the hidden treasures featured in a 1980s puzzle book.

Season 4, Episode 5

Butch Cassidy's Lost Loot

Josh rides into the Wild West to hunt for Butch Cassidy's missing money.

Season 4, Episode 6

Hunt for the Metal Library

Josh travels through the jungles of Ecuador to explore the watery depths of Tayos Cave for a legendary set of metal plates believed to be created by an advanced ancient civilization.

Season 4, Episode 7

Great Women of Ancient Egypt

Josh investigates three of the most powerful women in ancient Egypt.

Season 4, Episode 8

Egypt's Lost Queens

Josh continues his investigation of ancient Egypt's powerful women rulers.

Season 4, Episode 9

Secrets of Brother XII

Josh uncovers the mystery of a treasure left behind by an insidious cult.

Season 4, Episode 10

Pyramid of Legends

Josh ventures into the ancient Maya city of El Mirador in search of the lost tombs of a mysterious ruling dynasty called the Snake Kings.

Season 4, Episode 11

Lost City of El Mirador

Josh concludes his investigation into the mysterious Maya city of El Mirador, from the possible burial of the elusive Snake Kings to uncovering the secrets behind the fall of one of history's greatest ancient cities.

Season 4, Episode 12

Nazis in Argentina

Josh ventures to Argentina, where many Nazi SS officers escaped to after World War II. He uncovers secret Nazi hideouts and investigates what may be the most shocking conspiracy theory of all -- Adolf Hitler's "true" fate.

Season 4, Episode 13

Lost Gold of Jean Laffite

Josh ventures to the American south to uncover the mystery of real-life buccaneer Jean Laffite and the location of his hidden treasure.

Season 4, Episode 14

Mahogany Ship

Josh goes down under to search along Australia's infamous Shipwreck Coast for the missing Mahogany Ship. Confirming the vessel's existence could rewrite Australia's history.

Season 4, Episode 15

Hunt for the Ruby Slippers

Josh investigates the theft of one of the most iconic pieces of Hollywood memorabilia of all time -- the ruby slippers worn by Judy Garland in the 1939 classic movie, The Wizard of Oz.