After the Green Kids gain their powers to understand animals in their first adventure The Green Spring, they travel to the Arctic. There they meet their friend Iluak, and decide to go sledding. At first they try to use a snowmobile but realize that they should use a dog sled. By riding the dog sled they create very little impact to the environment. As they are on their adventure the ice cracks and the kids begin going out to sea. Can the Green Kids be saved so they can continue helping the Arctic animals?