Previews + Extras
Killer Floods Preview
S44 E18 - 30s
All over the world, scientists are discovering traces of ancient floods on a scale that dwarfs even the most severe flood disasters of recent times. What triggered these cataclysmic floods, and could they strike again? In the Channeled Scablands of Washington State, the level prairie gives way to bizarre, gargantuan rock formations.
First Time Britain Left Europe
S44 E18 - 3m 15s
Geologists think these iconic chalk cliffs hold an extraordinary secret.
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