Three boys steal a sailboat and sail away for a summer adventure on Lake Mälaren.

Gunnar Hede, a young Swedish man, wants to become a professional musician, but when his father suddenly dies he is pressured by his family to take over the family business of raising and selling reindeer.

A naval adventure that focuses on the rivalry among the crew, particularly the indignation wrought by the behavior of inplacable Captain Steen. Dick, one of the sailors, is one of the most rebellious and draws up plans to exact vengeance. The opportunity arises, but an incident that may sink the ship changes the focus of attention. The lighting for the film and the composition of the scenes are regarded as the highlights of the movie.

Baron Baltzar Casimir Von Gahl - after an earlier adventure commonly known as "Baron Olson" - owns an old farm, but has huge debts.

The friends Ringdahl, Rutberg and Frisén from Öregrund travels to Stockholm by boat to party.