Tiger the Cat bids farewell to his owner, Alexander, and heads off to the coast with his friend Wanda Blue-tongue and the frog Tark (who is really and extraterrestrial from the Planet Griffon) to spread the word about how to save the Earth. They enlist a lot of fellow creatures along the way, including Sam the Crow. Tiger and the crew convince others to help to cool the Earth. But the ultimate test lies in convining the elusive Yowie. Can they really help shift the Earth away from disaster?