Four kids - Eugen, Wrigley, Bäschteli and Eduard - leave for an adventure around Switzerland, searching for the fabulous treasure of Titicaca Lake, discovered by Fritzli Bühler.
as Eugen
as Wrigley
as Bäschteli
as Eduard
as Vater Eugen
as Vater Wrigley
as Fritzli Bühler
as Vater Bäschteli
as Tante Melanie
as Polizeibeamter Luzern
as Hausfrau
as Mutter Eugen
as Mutter Wrigley
as Mutter Bäschteli
as Polizist Bühler
as Professor Gantenbein
as Feuerwehrhauptmann
