As Auden West (18) embarks on her summer journey to reconnect with her estranged father, Robert, in the serene coastal town of Colby, she is eager to break away from the confines of her academic life and embrace a carefree existence before heading off to college. However, her mother, Victoria, staunchly disapproves of their budding relationship after years spent apart, during which Robert has immersed himself in his studies and welcomed a new infant daughter, Thisbe, with his wife, Heidi.
On her first day in Colby, Auden suggests visiting "the Tip," a local hangout, which leads her down a path of unexpected experiences, including a rather regrettable kiss. Seeking advice from Heidi, she visits her shop the next day and encounters a trio of girls—Leah, Esther, and Maggie—each possessing their own intricate backstories. Initially, Maggie keeps Auden at a distance as she struggles with her feelings for Eli, the mysterious guy who captures her curiosity.
As the summer unfolds, Auden finds therapeutic solace in her nocturnal escapades through Colby’s peaceful streets. During these ventures, she meets fellow insomniac Eli Stock, a charismatic BMX biker with a taste for midnight adventures and a spirited approach to life. Eli becomes a catalyst for Auden to confront her unmet childhood experiences, enticing her into thrilling nighttime escapades that spark joy and challenge her comfort zone.
Their initial escapade leads them to a clandestine pie shop, where they engage in a lighthearted game of Connect Four. The following evening, while enjoying mini golf, Auden shares her regrets about missing her prom and her coveted dress. Eli's calming presence begins to ease her anxieties, and their connection deepens as they continue to uncover each other's layers.
Just when Auden feels a sense of happiness taking root, her mother arrives unexpectedly, casting a shadow over their shared moments and disapproving of Auden's closeness with Heidi. Despite this, Maggie offers her support, paving the way for a newfound friendship. Auden soon finds herself more immersed in the lives of her new companions, attending a BMX event that showcases Maggie's exhilarating stunts and joining the fun at a Conch House party filled with heartfelt revelations.
It is at this lively gathering that Auden learns about Eli's past—a tragic incident involving his best friend Abe, which has significantly impacted his emotional state. Their late-night conversations, especially during a showing of The Princess Bride, become pivotal moments of understanding and connection. While moving deeper into the intricacies of Eli's struggles, Auden stumbles upon various online videos displaying Eli and Abe's BMX feats, igniting a wave of questions about Eli’s concealed pain.
As night falls, Auden agrees to embark on new adventures, including a daring infiltration of a lighthouse. Later, while resting in Eli's truck, he finally opens up about reigniting his passion for cycling, yet their dialogue subtly shifts to avoid confronting their personal traumas. Their relationship takes a dizzying turn when Auden playfully transports Eli in a shopping cart, leading to a mishap that exacerbates Eli's anxiety. Despite her attempt to reassure him, he is steeped in regret, unwilling to face the underlying issues affecting their bond.
Days later, Auden invites Eli to the annual Fourth of July "Hot Dog Party." Although he initially refuses due to his disdain for social events, the mention of Abe sparks unease, resulting in a tempestuous atmosphere. An unexpected arrival by Eli stirs up the evening, culminating in a chaotic food fight. As chaos subsides, Auden and Eli share a romantic moment, exchanging their first kiss beneath the shimmering fireworks.
Afterward, Auden unexpectedly encounters her father outside her favorite café, suitcase in hand. He confides that he has temporarily left home, feeling overwhelmed by Heidi's assertiveness. This prompts Auden to express her frustrations regarding his lack of commitment and willingness to fight for their family life. With newfound clarity, she seeks advice from her mother, realizing the strength Heidi has shown in reclaiming her own space. This understanding encourages Robert to return home, leading to heartfelt discussions and reconciliation with Auden and Victoria.
As Auden and Eli's connection flourishes, they face a setback when past fears and unresolved issues lead to conflict. A miscommunication regarding Eli's passion for cycling prompts a defensive response from Auden, who realizes her anxiety surrounding riding stems from her own past experiences. With encouragement from Heidi, Auden confronts her fears, while Eli reignites his passion for BMX, ultimately participating in a thrilling competition at the local skate park. After his victory, Auden proudly congratulates him, acknowledging not just his triumph but also his growth.
As a new day dawns, Eli makes a striking entrance, dressed in a tuxedo that radiates charm, prompting Auden to emerge gracefully in her own stunning prom attire. They ride together to the beach, soon joined by other friends for an impromptu celebration. In these idyllic moments filled with joy and laughter, Auden and Eli once again surrender to their feelings, sharing another tender kiss that deepens their connection.
When summer gives way to autumn, Auden finds herself studying abroad in Barcelona, immersed in new experiences and culture. Amid this transition, she receives a postcard from Eli, a treasured reminder of their shared journey and the unbroken bond that connects them. As she enjoys lunch with her college roommate Maggie, Auden’s thoughts drift back to those sun-drenched days in Colby, filled with the sweet simplicity of youth and the thrill of first love.
