Senior Year

Stephanie Conway begins her video by explaining her background and the events leading up to a recent incident. She asks her father Jim to help her record the livestream, setting the stage for her reflective story. The scene is introduced with her recounting past experiences from her teenage years.

As a 14-year-old in 1999, Stephanie moves to the US from Australia. During her birthday party at a bowling alley, she interacts with her parents, her friends Martha and Seth, and her crush Blaine. Tiffany and her friends mock Stephanie and her friends, fueling Stephanie’s desire to become popular.

By her senior year, Stephanie is cheerleading captain, dating Blaine, and vying for prom queen, inspired by her idol Deanna Russo. During a pep rally, she suffers a fall after a cheer stunt gone wrong, marking a low point in her quest for popularity.

Twenty years later, Stephanie, now 37, wakes up to find herself as an adult. She is confused but welcomed by Jim and Martha, who are happy she is awake. She recognizes her old neighborhood and her high school memories flood back.

Stephanie visits old friends Blaine and Tiffany, now married with a daughter, Bri. They are surprised to see her awake. Seth visits her with a high school yearbook, memorializing her as part of their graduating class, indicating her importance in their shared history.

Stephanie convinces Martha, now principal, to let her enroll in the last month of high school to graduate and attend prom. She quickly befriends current students Janet and Yaz, seeking to relive her teenage dreams of popularity.

With her new iPhone, Stephanie tries to gain followers and reconnects with students at school. She shows them dance moves, including a Britney Spears routine, and becomes involved in school activities, aiming to boost her popularity.

Tiffany organizes a PTA event where Stephanie’s provocative cheerleading dance draws Blaine’s attention. Stephanie’s performance creates a stir, and Martha shares her own struggles as a closeted lesbian in high school, explaining her rules against competition and popularity.

Stephanie intentionally annoys Tiffany at a movie night, leading to Tiffany’s ejection. Meanwhile, Blaine and Tiffany’s troubled marriage emerges. Seth criticizes Stephanie for her manipulations, but they still enjoy each other's company.

The school reinstates prom elections, which Tiffany rigs for Bri to win, but Bri drops out. Stephanie wins prom queen with her friend Bri’s boyfriend. Following the prom, students attend an afterparty at Martha’s house, where tensions rise after Tiffany calls the police.

Stephanie returns home to find her driver is Deanna Russo, who shares her own struggles after prom night. Stephanie reflects on her past goals, realizing their silliness, and appreciates her friends Martha and Seth for their support.

Stephanie joins her classmates at graduation, celebrating her achievement. She performs a dance with cheerleaders, including herself and Tiffany, and shares a heartfelt moment with Seth, whom she finally kisses, symbolizing her growth and acceptance.

Stephanie’s social media video concludes with her expressing remorse and gratitude. Tiffany visits her, and they resolve their differences, with Tiffany encouraging her to be a better mom. The movie ends with everyone celebrating Stephanie’s transformation.