The Best Episodes of What on Earth? Season 5

Something strange in the Himalayas could be evidence of a top-secret CIA program to turn monks into killer agents; cutting-edge science helps experts investigate the truth behind the mysterious anomaly.

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Alien monoliths haunt the coast of England; an obliterated jungle points to an brutal narco gold rush; evidence of a strange blood-red creature emerging from the deep.

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A satanic symbol that points to an army of the dead in Siberia; a massive stone giant in a remote desert; evidence of a Russian doomsday device right on America's doorstep; cutting-edge technology helps experts answer sinister mysteries from space.

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Zombie reindeer haunting the mountains of Norway. Strange circles in the sand by a secret US military base. A gigantic streak in the Arctic pointing towards alien life. Cutting-edge technology helps experts answer these sinister mysteries from space.

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A fleet of sunken ships that point to ghosts, cannibals, and bloodshed in early America; strange arctic holes that NASA can't explain; near Area 51, mysterious alien structures straight out of Star Wars.

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New discoveries from space give experts new clues in the hunt for Jack the Ripper; a strange object crash-lands in Antarctica, experts speculate it could be an alien visitor.

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Hundreds of shipwrecks in the middle of a desert in Africa. A ghost town where hundreds of its inhabitants have mysteriously died. Something strange in North Korea. Cutting-edge tech helps experts answer these sinister mysteries from space.

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A site that could be the Garden of Eden hides a deadly secret; when a gateway to hell suddenly opens, experts investigate where it leads; a mysterious shipwreck could be an infamous Soviet KGB pirate ship.

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Evidence of a mysterious 5,000-year-old structure suddenly appears in Ireland. A top-secret machine that can see back in time. A satanic pentagram in the snow that points to witchcraft in the New World.

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A strange circular forest next to a notorious cannibal site. When an eerie crater is spotted in Siberia, experts uncover if it could be evidence of Nikola Tesla's doomsday device. Cutting-edge tech helps experts answer these sinister mysteries from space.

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