Travel back in time and go face-to-face with the most ferocious animal giants of the Ice Age. Animals such as the saber-toothed cat, the short-faced bear, and the dire wolf. Brings these lethal creatures to life in a startling portrait of their wild existence and puzzling extinction in the ancient Americas. Learn how these remarkable creatures wielded power over the prehistoric kingdom's largest beasts and how they disappeared. Find out why their smaller, present-day cousins survived. Join leading paleontologists as they uncover fossilized bones of these super-predators, revealing details about their lives and disappearance from the Earth.