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10 Episodes
S12 E1 - Bullseye in the Sky
S12 E2 - Mystery of the Fallen Star
S12 E3 - Indiana's War Factory
S12 E4 - Turkey's Lost Terror Dome
S12 E5 - Blood Feud of Gresham Castle
S12 E6 - The Boneyard of Arizona
S12 E7 - Nevada's Mystery Marking
S12 E8 - Ghost Ship of Ireland
S12 E9 - Secrets of Biosphere 2
S12 E10 - Arctic Hunters of Norway
Streaming, rent, or buy What on Earth? – Season 12:
Currently you are able to watch "What on Earth? - Season 12" streaming on Discovery+ Amazon Channel, Science Channel, Discovery + or buy it as download on Amazon Video, Fandango At Home.
