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The Best Episodes of What on Earth? Season 9

Every episode of What on Earth? Season 9 ranked from best to worst. Discover the Best Episodes of What on Earth? Season 9!

Binge this in 7h 20m·Peaking at 6.8/10
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Episode Rankings

  1. #1 Fan Favorite
    What on Earth? Season 9 Episode 5 - America’s Swamp Castle
    6.8/10(12 votes)

    S9:E5

    Images reveal a forgotten war-torn fortress in the swamplands of Louisiana.

    Director:Unknown
    Writer:Unknown

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  2. What on Earth? Season 9 Episode 3 - Aztec Alien Mystery
    6.6/10(11 votes)

    S9:E3

    Images reveal an alien substance in the land of the Aztecs.

    Director:Unknown
    Writer:Unknown

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  3. What on Earth? Season 9 Episode 10 - America's Secret Apocalypse
    6.5/10(7 votes)

    S9:E10

    Satellites capture evidence of catastrophic and secret military testing.

    Director:Unknown
    Writer:Unknown

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  4. What on Earth? Season 9 Episode 1 - Curse of the Amazon Nazis
    6.4/10(13 votes)

    S9:E1

    Experts follow evidence of a Nazi base in the Amazons to a dark discovery.

    Director:Unknown
    Writer:Unknown

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  5. What on Earth? Season 9 Episode 4 - Gate to the Viking Gods
    6.4/10(10 votes)

    S9:E4

    New evidence reveals a Viking portal to their spiritual realm.

    Director:Unknown
    Writer:Unknown

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  6. What on Earth? Season 9 Episode 9 - Stalin's Secret Atlantis
    6.4/10(7 votes)

    S9:E9

    When experts spot what appears to be an abandoned city in the Caspian Sea, they investigate declassified Cold War evidence to reveal an Atlantis-like city built by the Soviets; what they find exposes its long-lost secrets.

    Director:Unknown
    Writer:Unknown

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  7. What on Earth? Season 9 Episode 7 - Temple of the Island Eater
    6.2/10(6 votes)

    S9:E7

    A mystery in Hawaii points to human sacrifice and a shape-shifting god.

    Director:Unknown
    Writer:Unknown

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  8. What on Earth? Season 9 Episode 6 - Lost City of the Vampires
    5.9/10(9 votes)

    S9:E6

    Experts uncover a gravesite with the remains of possible vampire burials.

    Director:Unknown
    Writer:Unknown

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  9. What on Earth? Season 9 Episode 2 - Epstein’s Forbidden Temple
    5.6/10(14 votes)

    S9:E2

    Satellite images capture a mysterious building on Jeffrey Epstein’s island.

    Director:Unknown
    Writer:Unknown

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  10. What on Earth? Season 9 Episode 8 - Horror of Dead Man's Island
    0.0/10(0 votes)

    S9:E8

    Satellites lead experts to an island that may be linked to a massacre.

    Director:Unknown
    Writer:Unknown

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Season 9 Ratings Summary

"America’s Swamp Castle" is the best rated episode of What on Earth? season 9. It scored 6.8/10 from 12 votes. Written and directed by Unknown, it aired on April 8, 2021. This episode is rated 0.2 points higher than the second-best, "Aztec Alien Mystery".