The planned marriage between Premierpiet and Probleempiet is in jeopardy, scholars Hans and Frans Steenstra have been kidnapped, and a rare ruby has been stolen from the Rijksmuseum. The dangerous Dr. Brein is behind all of this. Sinterklaas must intervene and even sends his Pieten on a trip to Switzerland to prevent Dr. Brein's criminal organization from gaining power.
Jos Brink
Museum Directeur
Ricardo de Groot
Donnie Bianco
Richard de Ruijter
Boris
Bart Ettekoven
Sluwe Ruudje
Sander Faas
Hans Steenstra
Hetty Heyting
Tante Til
Liane Houdijk
Pittige Pia
Patrick Kerklaan
Patserpiet 1
