The Truth Behind Season 1 Episodes

Episode 1

The Truth Behind: The Ark

Sat, Feb 7, 202646 mins

Modern-day engineers perform tests to see how Noah could possibly have built his giant ark with the technology which existed thousands of years ago, and believers and non-believers put their case.

Episode 2

The Bermuda Triangle

60 mins

Over many years, hundreds of ships and planes have disappeared in the area known as "The Bermuda Triangle". This documentary hears various theories as to why".

Episode 3

Crop Circles

Mon, Feb 1, 2010

Episode 4

The Dead Sea Scrolls

Sat, Feb 7, 2026

Experts weigh in on the mysteries of the Dead Sea Scrolls, which contain books from the Old Testament and other ancient texts.

Episode 5

The Nasca Lines

Sat, Feb 7, 2026

These ancient geoglyphs can only be viewed from an eagle's perspective. Follow historians and scientists investigating this Peruvian phenomenon.

Episode 6

The Devil's Bible

Sun, Dec 14, 200851 mins

At 165 pounds, and allegedly made from the skins of 160 donkeys, the Codex Gigas is the world's largest and most mysterious medieval manuscript. Filled with satanic images and demonic spells, according to legend, the cursed text sprang from a doomed monk's pact with the Devil. Now, Nat Geo follows a team of scientists as they embark on an unprecedented quest to unravel the secrets behind the book's darkened pages. Using ultra-violet fluorescence imaging, handwriting analysis and a re-creation of the text, forensic document experts attempt to uncover the cryptic truth behind this ancient Devil's Bible.

Episode 7

UFOs over Phoenix

Sat, Feb 7, 2026

Episode 8

The Druids

Sat, Feb 7, 2026

Many say the Druids were mystic holy men; some say they were brutal cannibals. Watch as new evidence is revealed about these Celtic pagan priests.

Episode 9

Bigfoot

Sat, Feb 7, 2026

Join Bigfoot investigators as they deconstruct a famous film that many believe is the only real footage of the legendary Sasquatch.

Episode 12

The Freemasons

Sat, Feb 7, 2026

Episode 13

The Nevada Triangle

Sat, Feb 7, 2026

An expansive -- and elusive -- triangular region covering parts of California and Nevada has been linked to dozens of missing airplane flights.