Jérémie Archambault starts a new life with her father and her brother, far away from the city, and gets a job as a lifeguard for the summer at the Domaine du Lac. Working at the beach is a new start for her, and she’d like to put her heavy past behind her. She joins a team of five lifeguards: Raphaëlle, Camille, Olivier, Thomas and Maxime. Rapidly, Jérémie realizes that she’s involuntarily disrupting the group dynamic.

It’s Jérémie’s first day of work … and Raphaëlle is making her life difficult! Raph holds Jérémie responsible for her boyfriend’s misfortunes. Add to that Olivier, her cabin roommate, who turns out to be hard to pin down. After a bad performance for Thomas at his swimming competition, Jérémie gets chewed out by Philippe Cinq-Mars, her boss, for having “dared” to give Thomas tips. Her first day is turning out pretty bad … until her new friends come to her rescue.

Day off for Jérémie. She and Maxime planned to spend the day together, but their plans are interrupted by a surprise visit from Mathieu and Benjamin. Jérémie decides to spend time with her family … which brings back some bad memories. For her part, Raphaëlle has trouble containing her jealousy when it comes to her boyfriend Thomas.

Thomas is having trouble getting over his failure at the swimming meet, which causes frictions with his girlfriend and his father. During that time, Olivier and Jérémie are getting closer. The two roommates are getting along rather well … but they’re also hiding elements of their past from each other. During that time, Camille is trying to repress an impossible love… Is it possible that she has feelings for her best friend’s boyfriend?

Thomas shows signs of life. Jérémie encourages him to face his problems. Max and Olivier, for their part, are having a falling out. The camp trip didn’t turn out like Max hoped, and he blames Olivier. Camille falls under the charms of a boy … who might not be interested in her for the right reasons.

If Jérémie and Olivier wished to live the early days of their relationships in the greatest of secrets, it’s a complete bust. Their relation is revealed for all to see and no one is indifferent! Despite her happy mood, Jérémie is still repressing her past, which seems to track her everywhere. The arrival of Ève, one of her oldest friends, forces her to reveal a bit more.

Motivated by Ève’s recent visit, Jérémie decides to move forward, rather than exhaust herself denying her past. However, moving forward also has its lot of difficulties. That requires Jérémie to trust those she loves and who support her: her family, her friends … and especially Olivier. Will Jérémie reveal to her boyfriend that darker part of her life, even if it means risking being hurt once again?

Jérémie gets news from her college program. A program which has nothing exciting for her. Olivier notices and tries to convince her to listen to herself, but Jérémie is refusing to listen. She’s preoccupied by something else. By trying to help Max fix a mistake, one part of her past, which she had tried hard to forget, comes back to haunt her.

When Olivier tells her that he’s going on a trip, Jérémie reacts with a frankness that destabilizes him. Stuck, Anne is also forced to be honest with her daughter. This new revelation upsets Jérémie who doesn’t know if she’ll have to do like her mother and lie to Mathieu.

It’s been a year since Fannie’s death. A commemorative ceremony is organized in her honour. Jérémie doesn’t want to attend. Fortunately, Olivier succeeds in changing her mind… almost. Jérémie chooses another way of reconnecting with her past, which finally allows her to make peace with the death of her best friend.

To celebrate the end of an eventful summer, Jérémie, Olivier, Camille, Maxime, Thomas and Raphaëlle know that there’s nothing better than a starlit evening on the beach. All of them are looking forward to fall, even Jérémie. But fall might not turn out like she’s imagined.