Lyès makes a risky play to bait Murillo, but Ali retaliates. As Internal Affairs closes in on his team, a shocking discovery turns the case on its head.

Murillo makes his move. Determined to get dirt on Lyès, Miranda presses Arno and Tatoo. A past romance is brought to light while Alice is undercover.

Alice's true motives are revealed. Lyès chases new leads and has a rendezvous with Ali; Murillo escalates matters by kidnapping a member of the team.

Bakari goes missing. After visiting Peretto in prison, Lyès and Alice go to Spain. Commissioner Fabiani fends off Internal Affairs over a tense lunch.

Assigned to "clean up" the precinct, Miranda questions Lyès, Alice and the team. Ali Saïdi returns for his nephew's burial, determined to get answers.

Lyès and his team bust a drug deal with shady new players — and face heat from Commissioner Fabiani. Interpol agent Alice Vidal arrives in Marseille.