Amazon Prime’s television adaptation of Jenny Han’s The Summer I Turned Pretty trilogy of novels isn’t over after all.

The streaming service will air a film conclusion to the series, Deadline reports. The news comes as a surprise to fans who thought that the show had ended after three seasons.

Han’s young adult romance trilogy launched in 2009 with The Summer I Turned Pretty; the novels It’s Not Summer Without You and We’ll Always Have Summer followed in 2010 and 2011, respectively. The books tell the story of Isabel “Belly” Conklin, who’s in a love triangle with brothers Conrad and Jeremiah Fisher.

The series adaptation, which stars Lola Tung, Christopher Briney, and Gavin Casalegno, premiered in 2022. The third and final season began in July, with the final episode airing last week. The series was a huge hit for Amazon, with the first two episodes of the final season drawing 25 million viewers in the seven days after its premiere.

The film conclusion of the series will be directed by Han, who will also co-write the screenplay with Sarah Kucserka (High Fidelity). Stars Tung and Briney are confirmed to return.

“There is another big milestone left in Belly’s journey, and I thought only a movie could give it its proper due,” Han told Deadline. “I’m so grateful to Prime Video for continuing to support my vision for this story and for making it possible to share this final chapter with the fans.”

Michael Schaub is a contributing writer.