Ex-con Marco Beckers kidnaps his son from kindergarten, because his ex-girlfriend Pascale refuses him any contact. Because of the quick intervention from Nauwelaert's team, they can avoid worse. Beckers states that Pascale's new friend, antiquarian Frison, is much more of a criminal then he is, but he was lucky never to get caught. Frison declares that the boy is his son. Beckers has evidence that Frison deals in stolen art and also swindles with his insurance. An unsolved murder dossier about a shifty Dutch art dealer also mentions Frison, but Marco denies knowing about it. Investigating Frison and Beckers., John learns that Marco gets his information from his former foreign legion instructor Stassart.