Season 3, Episode 10 of The Summer I Turned Pretty, titled “Last Year,” advanced the series’ central arcs and set the stage for a Paris-set finale by deepening Belly’s life abroad, showing a charged reconciliation between the Fisher brothers and ending with a last-minute trip that could lead to a reunion.
The hour-long episode — which follows three months of Belly’s life in Paris — alternates between her attempts to build a new life overseas and the fallout back in Cousins. Belly (Lola Tung) is shown navigating small triumphs and loneliness in Paris, making friends and ultimately beginning a romantic connection with Benito. Back home, Jeremiah (Gavin Casalegno) is recovering from a breakup and starting to reconstruct his life after dropping out of school, while Conrad (Christopher Briney) begins writing letters to Belly that echo the books and his earlier gestures in the series.
The episode moves through seasonal beats — Thanksgiving, Christmas and New Year’s — and uses those milestones to tighten character choices. Belly spends a snowy Christmas Eve in Paris with Benito, who is presented as a friend at first and later a romantic interest; she kisses him at midnight and decides to stay in Paris another year after finding a solo apartment. Taylor (Rain Spencer) visits for New Year’s Eve, and both Fisher brothers reach out: Jeremiah calls to make amends, and Conrad sends small parcels and letters, including Sour Patch Kids and a Junior Mint accompanied by an infinity necklace.
Conrad’s letters are threaded through the episode as a direct emotional line to Belly. In one excerpt he imagines her in a Paris café and writes, “Merry Christmas, Belly. I hope Paris is everything you dreamed it would be.” Later, after a meeting with Jeremiah at their mother’s grave, he confesses more plainly: “You’re pretty much all I think about.” Those notes and the items he sends serve as signposts for the brothers’ evolving relationship and Conrad’s attempt to bridge distance.
The reunion between the brothers at Susannah’s gravesite functions as the episode’s emotional center. The scene finds Conrad and Jeremiah confronting past promises, jealousy and hurt. Conrad tells Jeremiah that he was not trying to “swoop in,” and Jeremiah admits that learning of Belly’s Christmas in Cousins convinced him their relationship had ended. In a blunt moment, Conrad tells Jeremiah, “You can’t take someone, Jere. She’s not a fucking object!” The exchange ends with apologies and a truce: both men leave with a clearer sense of responsibility and a measure of peace.
Following that reconciliation, Belly finally replies to Conrad with a brief note thanking him for the Junior Mint and providing her new Paris address. The response, while short, prompts Conrad to accept an invitation to a medical conference in Brussels and then, at the episode’s close, to board a plane to Paris ahead of Belly’s birthday. The episode ends with Belly getting her hair cut short and saying, “I’m ready for something new this summer,” a line that positions the final episode to resolve whether the show will mirror the book’s romantic conclusion.
Fans reacted positively to Episode 10 after a divisive prior installment, praising the brothers’ reconciliation and the episode’s provision of meaningful character growth. Viewers have signaled anticipation for a romantic climax in Paris when the Season 3 finale premieres Wednesday, Sept. 17, on Prime Video.
The episode’s mix of small gestures, frank conversations and a last-minute journey to Paris compresses several narrative threads into a setup for the finale. It leaves the central question of Belly’s romantic future open while giving both Conrad and Jeremiah scenes of accountability that the series has been building toward across seasons.