Watch: Trailer for I Know What You Did Last Summer sequel out now – franchise returns after 19 years

Sony has unveiled the trailer for the highly anticipated sequel to I Know What You Did Last Summer, set to hit theaters on July 18.

Directed by Jennifer Kaytin Robinson, the film revives the beloved horror franchise that began with the 1997 film of the same name. The trailer was first showcased at CinemaCon and released online this week.

The sequel stars Madelyn Cline, Sarah Pidgeon, Tyriq Withers, Jonah Hauer-King, and Chase Sui Wonders, with Jennifer Love Hewitt and Freddie Prinze Jr. reprising their iconic roles as Julie James and Ray Bronson.

The plot follows a group of five friends who are haunted by the consequences of a pact to cover up their involvement in a tragic car accident. The group reconnects with two survivors from the infamous 1997 Southport Massacre, as they find themselves in a dangerous situation once again.

Freddie Prinze Jr.'s character hints at the recurrence of violence in Southport, saying, "This isn’t the first time there’s been violence like this in Southport," while Jennifer Love Hewitt's character appears to investigate the cause, questioning, "What did you do last summer?"

The script was co-written by Robinson and Sam Lansky, based on an initial draft by Leah McKendrick. Neal Moritz, who produced the original film, returns to produce the new movie. The first film, released in 1997, became a horror classic, starring Hewitt, Prinze Jr., Sarah Michelle Gellar, and Ryan Phillippe, and was based on the 1973 novel by Lois Duncan.

While Sarah Michelle Gellar was approached to return as Helen Shivers, she declined due to the difficulty of retconning her character's death. Principal photography for the sequel began in November 2024, with cinematographer Elisha Christian.

I Know What You Did Last Summer fans can look forward to the chilling return of their favorite characters this July.