Permafrost has preserved some of the most remarkable remnants of the past, including woolly mammoths, steppe bison, and cave lions.

Scrat is a never-ceasing being of destruction with universal cataclysmic potential.

One day around 15,000 years ago, a wall of ice 2,000 feet tall and 30 miles wide suddenly broke wide open, and it unleashed the largest flood that we know of in the history of Earth. Come and hit the road with me as we search for the geologic fingerprints...