Willy Wuff receives the news that his brother Rocco, star of a dog show on the holiday island of Fuerteventura, has disappeared without a trace. The brave four-legged friend immediately rushes to the airport and travels to the Canary Islands as a stowaway. There he meets little Andi, who is very afraid that his parents will separate. Willy Wuff not only manages to track down his brother, but also to save Andi's parents' marriage.