Steve Backshall and Michaela Strachan dive into the Ice Age like never before, as they witness the rise of mega-beasts such as the woolly mammoth and sabre-toothed cat. Using virtual production, these titans of the Ice Age are brought back to life. We reveal what made these mighty creatures so perfectly adapted to face the savage environmental extremes — and what led to their extinction. Deep within the Arctic Circle, Michaela is in freezing Svalbard solving the puzzle of why the Ice Age started in the first place. Meanwhile, Steve is in the UK discovering which Ice Age mega-beasts used the UK as their stomping ground. Joined by Prof Danielle Schreve, Steve is introduced to the bones of a mammoth, arctic foxes and even a massive Ice Age hyena. But Danielle has an even bigger discovery, and only now is she prepared to let the cameras in! She and her team uncovered the remains of almost a dozen Ice Age creatures all found in the same small cave near Plymouth.