Balthazar

On the run in Marrakesh, Balthazar feels responsible for the murders committed by his brother, Alexandre. Upon learning that Camille, Delgado, and Olivia have been suspended for not catching a criminal terrorizing Paris, Balthazar returns to help.

Under house arrest, Balthazar passes the time by spying on his neighbors and witnesses a teenage boy hanging himself with a duck mask over his face. Meanwhile, a figure in a duck mask kills three strangers in Paris. Is there a connection?

While performing a postmortem on an elderly lady, Balthazar finds a bomb with a timer inside her body. After Camille helps him defuse it, they realize the bomb was set to explode during the woman's funeral, making her family the targets.

When a minibus is found in a field with its six passengers missing, the driver mentions seeing a bright light. Could it be aliens? Things get even stranger after mutilated bodies turn up in a crop circle nearby-but not the people who disappeared.

A father, mother, and son are executed at a roadside rest stop, but it turns out the victims were posing as a family to transport drugs-which are now gone. Following the trail back to the dealer, Balthazar and Camille wind up in a dangerous contest.

Maya escapes from prison with Alexandre's help. Their plan becomes clear when Camille wakes up in a coffin six feet under, with a live video feed playing at the Institute. But that's only the start of the deadly game between the Balthazar brothers.