The former members of GEPAN reunite to investigate strange happenings at a nuclear power plant.

Marcel, Andre, Didier and Vera are tasked with finding a rational explanation for the phenomenon.

Remy returns to GEPAN to find a solution for his strange syndrome.

Didier hacks the CNES satellite dish to try and establish contact with the aliens.

Vera delves into her childhood memories in search of answers.

Remy and Vera try to find a way of identifying the language on the answering machine.

Didier searches for Claire and the cotton candy.

Visiting his daughter's school, Didier reconnects with the carefree spirit of his youth.

Didier asks Elise to help him save the world.

Vera finally meets the shaman.

Didier has a face-to-face meeting with his former adversary and learns the truth.

After the departure, Didier decides to question his parents about his origins.