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Watch 'What on Earth?' Season 6 Online

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Season 6 Episodes

1. World's Deadliest Threats

June 6th, 201944 min

The world's most dangerous threats are in top-secret locations all over the planet, and using cutting-edge technology, experts reveal the truth behind these sinister mysteries from space.

2. Monsters of Diamond Desert

June 13th, 201944 min

An abandoned ghost town in a remote desert with a dark past. When a strange facility is spotted in Russia, experts investigate if it's hiding evidence of alien life. Cutting-edge tech reveals new clues to these sinister mysteries from space.

3. North Korea Death Star

June 20th, 201944 min

When satellites spot a mysterious structure in North Korea, experts investigate if this sinister evidence points to a looming nuclear threat, and using cutting-edge tech, they reveal dark secrets from this strange place.

4. Aliens of the Infinity War

June 27th, 201944 min

When a strange pattern appears in a field, experts wonder if its an extraterrestrial response to a message sent to an alien star cluster in 1974, and using cutting-edge science, they uncover its true origin.

5. The Cave to Hell

July 11th, 201944 min

When a sinister cave is discovered in a remote corner of Iceland, experts uncover a secret underworld tunneling to unknown depths, and using cutting-edge tech, they investigate if this strange place could hold secrets of alien worlds.

6. Terror of the Ice Snake

July 18th, 201944 min

In the white ice of Antarctica, satellites discover a mysterious trail of sinister black objects, and when experts discover that it's moving, they use cutting-edge tech to investigate who or what is behind this strange phenomena.

7. Curse of Genghis Khan

July 25th, 201944 min

When an strange structure is discovered in the Gobi Desert, experts investigate if this mysterious site could reveal the whereabouts of lost treasure, which might change everything we know about Genghis Khan and the Mongol warriors who once lived here.

8. The King at Roswell

August 1st, 201944 min

When a strange, red plane is discovered near the sight of the Roswell UFO incident, experts wonder if the aircraft has Nazi or extraterrestrial origins, and their investigation reveals new secrets about one of America's most famous faces.

9. Treasures of Monster Graveyard

August 8th, 201944 min

At a mysterious site in the Gobi Desert, experts have discovered a monster graveyard, and this groundbreaking find contains the treasures of the alien beasts that once lived in this strange world.

All Seasons

Season 12

Season 12

Jan 12, 2023
Season 11

Season 11

Jun 22, 2022
Season 10

Season 10

Oct 24, 2021
Season 9

Season 9

Mar 11, 2021
Season 8

Season 8

Aug 27, 2020
Season 7

Season 7

Jan 9, 2020
Season 6

Season 6

Jun 6, 2019
Season 5

Season 5

Jan 8, 2019
Season 4

Season 4

Oct 17, 2017
Season 3

Season 3

Nov 15, 2016
Season 2

Season 2

Jan 25, 2016
Season 1

Season 1

Feb 10, 2015
Specials

Specials

Mar 26, 2016