Mommsen Gymnasium director Taft secretly places his nephew as a spy with the difficult class of Pepe Nietnagel. During the celebration for the 100th anniversary, a simulated fire forces the school to shut down for a week. The director's attempt to get a tough teacher assigned by the department of education results in the exact opposite because of Nietnagel's intervention.
Hansi Kraus
as Pepe Nietnagel
Uschi Glas
as Marion Nietnagel
Hannelore Elsner
as Geneviève Ponelle
Theo Lingen
as Oberstudiendirektor Dr. Gottlieb Taft
Gustav Knuth
as Kurt Nietnagel
Hans Clarin
as Dr. Glücklich
Ruth Stephan
as Studienrätin Dr. Mathilde Pollhagen
Rudolf Schündler
as Oberstudienrat Dr. Arthur Knörz
Hans Terofal
as Pedell Georg Bloch
Gerhart Lippert
as Heinz Thomas
Walter Rilla
as Ministerialdirektor Reichert
Harald Juhnke
as Oberstudienrat Blaumeier
