Gorgo does not see a tree and flies straight into it, losing his memory in the accident. This is a catastrophe for the geese but a miracle for Nils who finally has the chance to explain to Gorgo that he is not a goose but a powerful, majestic eagle. What Gorgo the eagle does quickly realise is that Nils looks like a tasty mouse. To avoid being swallowed by his friend, Nils must teach Gorgo to become a goose again. Gorgo gets a crash course; from flying in V formation to doing the goose-step. But Gorgo is becoming very hungry and has also met another eagle who, fascinated by Nils and Martin, chases them¿