Expedition Unknown (2015 – ...)

2015 • 18 seasons • Documentary, Reality • TV-PG

On August 7, 2026

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Episode 1 — Viking Secrets

Name: Episode 1 — Viking Secrets
Released: 2017-12-27
Duration: 60 min
Rating: 6
Cast: Josh Gates

Season 4 • Expedition Unknown

Released: 2017-12-27 • Documentary/Reality/Action & Adventure

60%

User score

From Denmark and Iceland to the United States and Canada, Josh Gates treads into Viking territory in an effort to unlock answers to their most enduring secrets, including how they attained and sustained their power and how far they really traveled.

Episodes

Episode 1
Viking Secrets
2017-12-27

Episode 2
Vikings in America
2018-01-03

Episode 3
Origins of Stonehenge
2018-01-10

Episode 4
The Secret
2018-01-17

Episode 5
Butch Cassidy's Lost Loot
2018-01-24

Episode 6
Hunt for the Metal Library
2018-01-31

Episode 7
Great Women of Ancient Egypt
2018-02-07

Episode 8
Egypt's Lost Queens
2018-02-14

Episode 9
Global Game Show: Out of This World
2018-02-21

Episode 10
Secrets of Brother XII
2018-02-28

Information

Episode air date	27.12.2017
Episode runtime	60 min
Episode rating	6.00
Genres	Documentary / Reality / Action & Adventure
TMDB series rating	8.0
IMDb series rating	8.2
Series status	Returning series
Age rating	6+
Country	US