Summary

Picking up almost directly where Part 2 left off, Jason has survived his attack at the hands of Paul and Ginny, and migrates to a store where he changes clothes and kills the store owners before moving on to a nearby lake front property named Higgins Haven. At the same time, Chris Higgins, who was attacked by a mysterious, disfigured stranger in the woods near Crystal Lake two years earlier, returns to the property with her friends; Debbie, Andy, Shelly, Vera, Chuck and Chilli. They all meet Chris' boyfriend Rick at their destination. Chris intends to face their fears. Shelly and Vera get into trouble with a biker gang who then comes to Higgin's Haven for revenge. However, they are dealt with by Jason before they can do any real damage except for taking the gas out of the gang's van. While Chris and Rick go ot for a walk in the woods, Jason wanders out to hunt again. He slashes Shelley's throat and takes his hockey mask. He then precedes to kill Vera (spear shot to eye), Andy (sliced in half while walking on hands) Debbie (knifed from under a hammock), Chuck (thrown on fuse box and electrocuted) and Chilli (impaled with fireplace poker). When Chris and Rick return they find the place empty when they split up to find out whats going on. Rick is attacked by Jason who squeezes his head so hard his eyeball pops out. Jason then confronts Chris, the two exchanging attacks until she leds Jason to the barn. She seemly defeats Jason by tying him to a rope and hanging him. Jason survives the hanging and shows his real face to Chris and she recognizes him as the man who attacked her two years ago. As Jason precedes to attack Chris, one of the bikers, Ali who survived his attack eariler, attempts his revenge but meets his doom. While Jason is busy hacking Ali, Chris picks up an axe and strikes Jason on the head, apparently killing him. Chris then wanders over to the lake and falls asleep in a canoe that drifts into the middle of the lake. She subsequently suffers a nightmare of first a revived Jason running out to the lake to attack, and then being grabbed and taken into the water by a decomposing Mrs. Voorhees. At some point later, the police take a clearly mentally disturbed Chris off the property as the camera fades out on Jason's body.