In a very bad mood, Pinky sits on the train to her Aunt Vera's. She lives in the countryside, and Pinky feels like she has been sent away. All her friends are off on fancy trips, and only her parents are indispensable at work. But when she meets Daniel, who is currently caring for an orphaned wolf cub, all her anger is forgotten. The little "Sunday" becomes a big task, with Aunt Vera lending a helpful hand. Suddenly, it looks like this could be Pinky's best summer vacation ever.