In the electrifying world of teen romance and summer heartaches, few shows have captured the raw ache of first love quite like The Summer I Turned Pretty. Based on Jenny Han’s beloved trilogy, the Prime Video series has kept audiences glued to their screens through two seasons of sun-soaked drama, brotherly rivalries, and that eternal question: Who will win Belly Conklin’s heart? Now, as Season 3 hurtles toward its explosive conclusion, the just-released trailer for Episode 11 – the series finale – has fans worldwide spiraling into a frenzy of speculation, tears, and desperate hopes. Dropping mere days before its September 17, 2025, premiere, this teaser promises to shatter illusions and rewrite destinies in the quaint beach town of Cousins, leaving viewers questioning everything they thought they knew about love, loss, and second chances.

Season 3, which premiered on July 16, 2025, with an expanded 11-episode arc, picks up after the devastating fallout of Belly’s (Lola Tung) engagement to Jeremiah Fisher (Gavin Casalegno). What started as a seemingly perfect summer romance has unraveled into a web of betrayals and unspoken truths. The trailer opens with haunting flashbacks to those idyllic Cousins Beach days, where Belly’s youthful infatuation with the brooding Conrad Fisher (Christopher Briney) first sparked.

But fast-forward to the present: Belly, now navigating post-college life, finds herself in Paris, attempting to escape the ghosts of her past. Enter Benito (Fernando Cattori), a charming new suitor who offers the stability she’s craved. Yet, as the trailer teases, this fresh start is anything but simple. Quick cuts show Belly laughing on a Vespa ride through the City of Light, only for the mood to darken as letters from Conrad arrive – heartfelt pleas that pull her back into the vortex of the Fisher brothers’ love triangle.

At the heart of the trailer’s emotional gut-punch is the revelation about Jeremiah and Belly’s relationship. “Jeremiah and Belly were never truly in love,” the voiceover intones dramatically, echoing fan theories that have simmered since the books. Their bond, portrayed as a comforting refuge amid grief over Susannah Fisher’s death, feels more like a safety net than a passionate flame. Clips flash to heated arguments and tender reconciliations, underscoring how Jeremiah’s infidelity – a frat party scandal with sorority girl Lacie that rocked their engagement – exposed the cracks. In the show, this betrayal hits harder than in the novels, with Jeremiah’s remorse leading to a desperate proposal that Belly accepts out of familiarity rather than fire. But as the wedding crumbles in Episode 8’s chaotic rehearsal dinner, where Conrad’s tearful confession nearly derails everything, it’s clear their “soulmate” label was a facade. Fans on social media are buzzing: Is Jeremiah’s growth – from party boy to reflective young man – enough to redeem him, or is he destined for a path of self-discovery without Belly?

Enter Conrad, the enigmatic older brother whose arc has been the season’s most compelling evolution. Once a “walking dead” figure, haunted by loss and self-doubt, Conrad’s therapy journey – introduced in earlier episodes – transforms him into a man ready to embrace life fully. The trailer showcases this rebirth: Conrad, no longer retreating into silence, confronts his demons head-on.

We see him in California, piecing together a future that includes medical school dreams inspired by his mother’s legacy, but his eyes light up only when Belly’s name is mentioned. “It’s time for him to truly live his life,” the teaser whispers, cutting to scenes of Conrad racing to Paris, packages and notes in hand, determined to fight for the girl who’s always held his heart. His vulnerability peaks in a rain-soaked reunion hint, where he admits, “I broke us to protect you, but I can’t let you go again.” This isn’t the passive Conrad of old; therapy has unlocked a fierce resolve, making his pursuit feel inevitable and intoxicating.

As the trailer builds to a crescendo, the stakes skyrocket. Belly, torn between Jeremiah’s easy comfort, Benito’s uncomplicated allure, and Conrad’s soul-stirring intensity, stands at a crossroads. Flashbacks interweave with present-day tension: volleyball games where Conrad and Belly sync effortlessly, beach confessions under the stars, and that electric Christmas in Cousins that reignited old sparks. The voiceover delivers the killer line: “If Conrad and Belly don’t end up together, it will all be for nothing.” Echoing the books’ resolution in We’ll Always Have Summer, where Belly ultimately chooses Conrad after calling off the wedding, the show amps up the drama with added layers – like Steven and Taylor’s supportive friendship, Laurel’s tough-love wisdom, and Adam Fisher’s distant but pivotal role.

This finale isn’t just an episode; it’s the end of an era. With no Season 4 confirmed, creator Jenny Han has promised a faithful yet fresh adaptation that honors the trilogy’s themes of growth and forgiveness. The trailer’s swelling soundtrack – a mix of Taylor Swift’s nostalgic hits like “Cardigan” – evokes the magic of those perfect summers, while underscoring the pain of letting go.

Will Belly follow her heart back to Conrad, fireworks and all? Or will fear of repeating past heartbreaks keep her from the love that feels like destiny? As Episode 11 drops on Prime Video at 3 a.m. ET / 8 a.m. BST, one thing’s certain: This game-changing closer will leave fans devastated, elated, and forever changed. In the words of Susannah’s ghostly letters, life’s too short not to chase the one who makes your world brighter. Cousins Beach may fade, but its lessons on love endure.