Geronimo has a brand new computer, Ordinatouille: very powerful, it has mechanical arms that allow him to cook, he is a joker, but also a little touchy. For his part, TÔea, on a secret mission to ChichÔen ItzÔa, has disappeared... With Ordinatouille, Farfouin and Jackal (both in love with TÔea), Geronimo goes in search of his sister, accused of having stolen a Mayan treasure. But, thanks to Ordinatouille, Geronimo will find TÔea and unmask the thief...