In spite of their total inexperience, three suburban lascars launch themselves into close protection. Thanks to a "mythical plan", they are assigned to protect Marie Van Verten: a capricious and whimsical young woman, heiress of the biggest fortune in Belgium... And incidentally, a target for over-trained killers! Will our heroes' sense of improvisation be enough to get them out of trouble?

Alice Tomaso gets out of jail, and goes looking for Léo and Julien, one of whom, it appears, is her father. On the way, she steals the wrong car - one belonging to the Russian mafia, and arrives at her destination with a gang of thugs out looking for her and the car.