Tomás lives in a very small Czech town and is a nature lover and a birdwatcher. He struggles to keep the forests he loves clean and constantly fights his "archenemy" whose sister and Tomás's classmate is secretly in love with him.

Sometimes a little kid thing causes a lot of grief. Twelve-year-old Tomáš (F. Renč) is going through a bad time at school and his classmates get him into trouble. When he goes to a convenience store with them, they steal some change, throw it in his briefcase and run away. Thomas is caught by the manager. But he doesn't tell his classmates and eventually runs away too. He hides in a game preserve with white deer. The gamekeeper (R. Brzobohatý) finds him there, but Tomáš refuses to return home. Eventually, the two meet once more, and this time it will be a happy meeting.