Elise Miller (Grace Helbig) is a young woman working as a publishing assistant. She recently completed her first book, which is said to explore themes of "unrequited love and the Loch Ness Monster". Currently engaged to Chester See, Elise’s life takes a sudden turn when she unintentionally witnesses her boss, Rachel Quaintance, making out with Walker Paige during work hours. Her friend Manda (Megan Duffy) captures photos of the scene, but Elise accidentally uploads these images to her publisher’s Facebook page, leading to her losing her job.
After this professional setback, Elise discovers that her fiancé, Jeff (Chester See), has been unfaithful, which prompts her to return to her old apartment in a state of distress. Feeling betrayed and seeking solace, she gets drunk and reaches out to Sally Ellen Karsten, the head camp counselor at Camp Takota, a place she attended as a child. Despite her initial hesitation, she confesses to Sally that she plans to go back to camp. The following morning, after some reflection, Elise decides to leave her current life behind and head to Camp Takota.
Upon arriving at the camp with the Fefferman family, including their young daughter Penny, Elise reunites with her old friends and fellow camp counselors, Maxine (Mamrie Hart) and Allison (Hannah Hart). The camp, once lively and bustling, is now facing an uncertain future, with its owners, Jared Meister (John Milhiser) and his assistant Kyle (Jason McNichols), planning to revamp it into a more digital experience in hopes of attracting more visitors. Unfortunately, the camp is also in danger of closing unless they can secure enough pre-registrations, which adds pressure on everyone involved.
Elsie’s role as the new camp counselor is challenging; she struggles to connect with the campers and feels out of place. Her frustration boils over when she finds her campers reading Jeff’s letters, in which he tries to win her back. Maxine and Allison support her by inviting her to their home that night, where she opens up about her recent heartbreak, work issues, and her desire to be happier. During their gathering, Elise learns that Allison has been accepted into a culinary institute in Chicago, sparking her own reflections on her future.
The dynamic at camp shifts when Chris Riedell appears as Eli, a farmer and friend of the girls who gives Elise a lift back to camp. Elise learns that Eli’s ex-wife cheated on him, and a mutual attraction starts to develop. Meanwhile, Jared and his assistant are pushing to turn Camp Takota into a more commercialized venture, which upset many of the camp’s long-time supporters. Elise’s friends, Maxine and Allison, brainstorm ways to save the camp, especially after receiving confirmation from Sally that unless at least half the previous campers pre-register for the next season, the camp will have to close.
Things become more complicated when Celia (Rachel Quaintance) offers Elise her old publishing job back, revealing that the viral photos actually boosted sales of the "Midnight Moonlight" series. She promises to publish Elise’s book if she returns the next day, which sparks a heated debate about her true desires. Elise confronts her friends about her decision, accusing Maxine of only wanting to save the camp for her own career advancement, and reveals that Allison has a career opportunity she’s hesitant to share. Feeling conflicted, Elise asks Eli for a ride to the train station, but he refuses, upset that she’s leaving him behind as she departs for her career. Instead, she asks Chet (Cameron Britton), the camp’s handyman, for a ride and spends time contemplating her choices at the bus station.
Ultimately, on the camp’s final day, which coincides with Visitors’ Day, Elise, Maxine, and Allison perform a lively dance to entertain the visiting parents. That evening, Jared makes a move to sell the camp to outsiders, but Maxine passionately defends its legacy, reminding everyone of its importance. She introduces Eli, who shares a spooky story with the campers, further bonding them. Just as Jeff arrives, demanding Elise come home with him, she confidently refuses, revealing her new relationship with Eli and asserting her independence. Jeff leaves disappointed, and his attempt to cause trouble is thwarted.
Thanks to cohesive efforts and the community’s support, the camp manages to secure enough pre-registrations, ensuring its survival for another year. The next day, the campers leave with optimistic spirits, and the camp is saved. In the following year, Maxine becomes the new head counselor, while Allison pursues her culinary dreams in Chicago. Elise, now a successful author with her book titled "Cabin Fever"—which features a character inspired by Penny—finds happiness with Eli, her career, and her personal growth.
Throughout this heartfelt journey, Elise learns the importance of friendship, following her dreams, and embracing change, all woven into a story about redemption, growth, and community.
