Didier has to deal with his new team: Marcel believes that the postcards sent by André, the former director of GEPAN, are coded, Rémy is enthusiastic about a potential extraterrestrial landing and Véra answers calls from witnesses of unidentified phenomena while taking care of Hatshepsout, the flamingo she has taken in. Didier learns that a commission has been created to investigate the explosion of the CRISTAL rocket and that Elise, his ex-wife, will be part of it.