by Oskar Santos
During the summer holidays, the naughty twin boys, Zip and Zap, are sent to an educational institution where all forms of fun and games are strictly prohibited. Together with their allies, Micro, Filo and Piojo, they found the Marble Gang and play only at night. With the help of the director’s granddaughter, Matilde, they sniff out an old secret that is hidden deep within the institution. But they are caught one night by the director… After the popular Spanish children's cartoon series "Zipi y Zape".
