After the summer holidays, Marion, Conny, Gaby, Jacqueline, and Uschi are on the train to Seeburg, where they attend boarding school. During the trip they meet trumpet-player Jochen and his band.
Marion Michael
Marion
Harald Juhnke
Bandleader Jochen
Ursula Herking
Internatsleiterin Busenius
Hubert von Meyerinck
Schulrat
Hans Richter
Referent Mayer
Walter Gross
Barbesitzer Blatzmann
Ilse Pagé
Conny
Margitta Scherr
Jacqueline
Käte Jaenicke
Assistentin des Schulrats
Klaus Dahlen
Musiker Bud
Elke Arendt
Gaby
