Billie Turf and Dolfie have to stay at boarding school during the summer holidays because their report cards are too poor. Everything goes smoothly until Kwel comes up with an invention that turns water into gasoline with a pill.

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Main Cast: Tom Janssen, Jan Kruyk, Richard Vroomen, Hub Consten, Frans Keulen, Simon van de Ende, Pascal Jacobi, Claire Leistra, Hub Schmitz, Cor van der Linden

Director: Henk van der Linden

Writer: Henk van der Linden

Editor:

Cinematographer:

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