When five friends inadvertently cause a deadly car accident, they cover up their involvement and make a pact to keep it a secret rather than face the consequences. A year later, their past comes back to haunt them and they're forced to confront a horrifying truth: someone knows what they did last summer... and is hell-bent on revenge. As one by one the friends are stalked by a killer, they discover that this has happened before, and they turn to two survivors of the massacre of 1997 for help. Twenty-eight years after the original slasher, Jennifer Love Hewitt and Freddie Prinze Jr return to their iconic roles, with Madelyn Cline, Chase Sui Wonders, Jonah Hauer-King, Tyriq Withers, and Sarah Pidgeon as the new generation of friends.