During a school trip, when the bus breaks down, Zoé, a quiet teenager, must stand up to Antoine, the most popular guy at school. No help in sight. Will they have to spend the night in the woods?
While Zoé tries to calm the group, Charlotte goes looking for a signal. Alone in the forest, she must confront her fears as tensions rise within the group.
As the water shortage becomes critical, Florence steps up to help her friends. Éloi, haunted by a strange dream, goes in search of answers. Just when he thinks he's made a promising discovery, the mystery only deepens.
Antoine distributes food "based on merit," which enrages Zoé. Billi tries to start a fire while Sammy attempts to open a door outside the camp.
Antoine is confident he'll win the election against Mathilde, but he realizes the group doesn't support him. To succeed, he must change his strategy. Charlotte, meanwhile, has only one thing on her mind: getting out of the forest.
Zoé begs Mathilde to stay in the race. Florence must not win. Meanwhile, Sammy detects a magnetic disturbance, and Éloi draws troubling tarot cards.
Election day, Zoé and Florence compete for the final votes. In the end, it's up to Charlotte to decide the outcome. Meanwhile, Éloi makes a startling discovery in the woods.
Florence, Antoine, and Charlotte head out in search of help. Their journey turns into a nightmare when Florence pushes them beyond their limits.
When they realize they are trapped in the forest, panic spreads among the teenagers. They'll have to survive much longer than expected. What if Éloi's visions are the only way to get home?
Antoine accuses Billi of stealing food, but Zoé demands proof before punishing anyone. Tension escalates when Éloi sees a skull matching his tarot card of the devil.
Zoé and Sammy try to decode the lock to the secret door. Mathilde and Éloi believe the mysterious stranger can help them. They try to get closer to her, but her distrust complicates everything.
The arrival of the stranger sends a shockwave through the camp. Her presence divides the group. Zoé must decide: welcome her or send her away? Meanwhile, Éloi is troubled by a threatening vision that includes a riddle.
Zoé and Sammy explore a dark, oppressive tunnel. Meanwhile, Charlotte and Louna discover a suspicious shelter in the forest. Charlotte questions her feelings toward Billi.
Trapped underground, Zoé and Sammy fear they'll never see daylight again. Charlotte makes a bold move toward Billi, but the response isn't what she expected. Florence makes a risky decision.
Florence hasn't returned to camp, and the group grows increasingly worried. They set off on a frantic race to find her, knowing time is running out.
Louna sets out with Charlotte and Éloi on a quest to find a cure. Meanwhile, Sammy works on equations using pyramid data and makes a game-changing discovery.
Held captive, Charlotte and Éloi try to escape. Éloi's visions reveal more about what happened to Louna's parents. Torn between family and friends, Louna starts doubting the plan.
The captors demand ransom to release Charlotte and Éloi. Overwhelmed, Zoé hesitates while Mathilde and Billi take action without her. When Florence learns the miracle plant doesn't exist, she is devastated.
Charlotte and Éloi must erase their tracks to escape Louna. Sammy is close to figuring out how to escape the forest, but time is running out...
The group takes a final risk to cross the rift as a new threat emerges in the forest. Will they make it back home or remain trapped forever?