After finding a skeleton while wandering in the canyons, 17-year-old Léa wakes up in 1991, in the body of Ismaël, a young man once close to her parents.

While inhabiting a new body, Léa discovers secrets about her parents' past. Back in the present, Léa snoops inside Karine's email inbox.

As the clock ticks, Léa wakes up in Pye's body and makes an attempt to prevent Ismaël's death — with surprising ramifications.

Léa discovers Sandra's secret and tries to fix the past through Pye. Ismaël feels betrayed by Karine. Miriam sheds new light on Ismaël's death.

After waking up as Patricia, Léa forms an unusual connection with Ismaël. Tensions come to a head between Léa and Romane.

Léa searches for the smoking gun. The nature of Stéphane's relationship with Ismaël comes to light. An existential question looms over Léa.

On the decisive night by the canyons, Ismaël's fate lies in the hands of Léa, who makes a self-sacrificing decision for her loved ones.