Format: Feature 92 min.

Director: Oskar Santos

Script: Francisco Roncal, Jorge Lara

Producers: Francisco Ramos, Fernando Bovaira, Mikel Lejarza, Mercedes Gamero.

Production houses: Zeta Audiovisual, Mod Producciones, Antena 3 Films, Kowalski Films.

Cast:  Javier Gutiérrez, Raúl Rivas, Daniel Cerezo, Claudia Vega, Fran García, Marcos Ruiz.

Synopsis:

Naughty twins Zip & Zap are sent to a strict summer school where all entertainment is forbidden.  Their mischief gets out of hand and they form the Marble Gang, the children's Resistance, to defy the evil Headmaster.  The children wind up uncovering a mysterious secret hidden deep within the school leading to the most wonderful adventure of their lives.