Season 4 poster

Season 4

8 episodes August 2, 2021

Episodes

1 The Wild West Aug 2, 2021 No ratings 2 The Battle for the Black Swan Aug 2, 2021 No ratings 3 Hollywood Aug 9, 2021 No ratings 4 The First Americans Aug 9, 2021 No ratings 5 Venice's Lost Empire Aug 9, 2021 No ratings 6 Hurricane Apocalypse Aug 17, 2021 No ratings 7 The Great Barrier Reef Aug 23, 2021 No ratings 8 Sea of Secrets Aug 23, 2021 No ratings