The mole is his/her own on the board among others, the soul of the team, its series cardinal or, on the contrary, the weak link. The mole is the eyes and ears of the film crew, the secret provocateur and executor of its insidious intrigues, an actor/actress with iron nerves and an impenetrable face. His/her task is to stay undercover until the end and during all 10 weeks drives the participants and viewers crazy with the question: who is this insidious saboteur?