The Summer I Turned Pretty is Prime Video's swooning coming-of-age romance based on Jenny Han's best-selling young-adult trilogy, and its third and final season turned the show into a full-blown cultural event. Lola Tung stars as Isabel "Belly" Conklin, whose summers at the idyllic beach town of Cousins have always revolved around two brothers — the brooding Conrad (Christopher Briney) and the sunny Jeremiah (Gavin Casalegno) — and the love triangle that has defined her adolescence. Han herself serves as showrunner and co-writer, guarding the adaptation's tone and emotional beats.

The final season leaps forward from the beach house into Belly's college years, raising the stakes from teenage summer flings to adult decisions about love, ambition, and who she wants to become. Adapting the trilogy's concluding book, the season pushes its central romance toward resolution while giving the wider ensemble of families and old wounds room to breathe. The result is a bittersweet farewell that trades some of the earlier seasons' sun-soaked innocence for genuine consequence.

Season 3 became one of the biggest streaming stories of the year, drawing tens of millions of viewers and racking up billions of minutes watched as its weekly episodes dominated social media. The passionate "Team Conrad" versus "Team Jeremiah" debate spilled far beyond the fandom, and the frenzy around the finale confirmed the show as a summer phenomenon. It streams on Prime Video.