The film begins in Camp Crystal Lake, a summer camp, where all of the teenaged camp counselors have fallen victim to Pamela Voorhees, who is on a murderous rampage to avenge the death of her son, Jason. Jason was mentally handicapped boy who couldn't swim very well. The other kids picked on him and pushed him into the lake before running away. The camp counselors who were on watch that night, Jimmy and Terry, were busy having sex at the time and failed to save him. The film opens with Pamela chasing the last camp counselor, Ginny Fields, through the camp. The two briefly struggle before Ginny retrieves Pamela's machete. Pamela rants about how they failed Jason and then lunges at her, causing Ginny to swing the machete around and decapitate Pamela.