The third and final season of Prime Video’s The Summer I Turned Pretty concluded with a definitive answer to the series’ central question: Belly (Lola Tung) chooses Conrad (Christopher Briney). The Season 3/series finale, titled “At Last,” moves the late‑season action to Paris and closes the show’s long‑running love triangle with a reunion that follows a night of revelations, intimacy and a last‑minute chase.
Conrad turns up in Paris for Belly’s 22nd birthday, and the two spend an evening revisiting painful and formative moments from their past, including the grief that has shaped both characters. After a night together that includes a passionate return to one another, Belly initially sends Conrad away, telling him she cannot be sure whether her feelings are authentic or merely the product of shared tragedy. She then has a change of heart, races to the train station and finds Conrad on a departing train; the two reconcile with a kiss and an exchange of “I love you.”
The episode intercuts the Paris action with the remaining Cousins characters resolving their arcs. Jeremiah (Gavin Casalegno) receives an unexpected professional boost after a viral clip, Denise (Isabella Briggs) prepares to move to San Francisco for a new start, and Jeremiah and Denise ultimately kiss at the beach house. Benito (Fernando Cattori), Belly’s on‑again, off‑again boyfriend, is revealed to have been broken up with before the Mexico trip, and the canceled wedding and Susannah’s death remain central to the emotional stakes that drive the finale.
Show creator Jenny Han told Entertainment Weekly that the Paris scenes were intended to be more than an epilogue, saying, “There is so much that is going to surprise fans about how much we’re showing of Belly in Paris and the whole ending.” The finale delivers extended time with Belly away from Cousins, giving the character a life she carved out for herself abroad before returning to reconcile with her past.
The hour spotlights the series’ recurring themes of grief, belonging and the difficulty of moving on. Conrad’s confession that his love is not an obligation or an outgrowth of his mother’s wishes is a key moment in the episode; he tells Belly that he has fought his feelings and that his love is not rooted in what Susannah wanted or in the family’s past. Belly, who has built a new life in Paris and at one point tells Conrad she will not abandon it for him, ultimately acknowledges that an essential part of her—"that girl" who followed her heart—still loves Conrad.
The finale also revisits some of the show’s most talked‑about motifs. Several scenes are underscored by Taylor Swift songs, a recurring soundtrack choice across the series that was again prominent in the final episode. Small moments that fans have long debated—such as Conrad gifting Belly a vial of sand from Cousins Beach and the pair’s extended Parisian intimacy—are shown in detail, answering questions that readers of Jenny Han’s novels and viewers of the television adaptation have discussed throughout the run.
Other characters receive tidy closures. Steven and Taylor work through professional and personal decisions about moving to San Francisco, Adam offers Jeremiah emotional support, and friendships at Cousins remain intact as the cast makes peace with the series’ losses and changes. The show concludes with a montage that includes a “Christmas in Paris” scrapbook of Belly and Conrad and a closing letter from Han thanking viewers for following the story.
The Summer I Turned Pretty began as a trilogy of young‑adult novels by Han and was adapted for television with an emphasis on the emotional weight of Susannah’s death and how that loss continued to shape each character’s choices. Critics and viewers have focused on the series’ romantic triangle since the first season, and the finale provides a conclusive end for that storyline while giving supporting characters a path forward.
Prime Video released Seasons 1 through 3 on its streaming platform; the production kept the novels’ central plot beats while expanding scenes, particularly those set in Paris, as Han and the show’s writers explored Belly’s adult life beyond Cousins. The series’ finale combines those additions with familiar elements from the books, presenting a resolved romantic end for Belly and Conrad while tying up secondary relationships.
For viewers who followed the series from its beginning or joined during later seasons, the finale supplies an unequivocal endpoint for the primary romance and a farewell from the creative team. In the episode’s final moments, Han’s letter reads, in part, “Thank you from the bottom of my heart for the love you’ve shown The Summer I Turned Pretty all these years,” an acknowledgment of the series’ run and an implicit closure to the story on screen.
The Summer I Turned Pretty Seasons 1 through 3 are available to stream on Prime Video.