Near the site of Tommy and Jason's final watery fight, young
Tina Shepard accidentally killed her father with her developing mental powers.
Now seventeen, Tina returns to Crystal Lake with her mother Amanda and her psychologist,
Dr. Crews. In the cabin next door, a group of friends has gathered to throw a
surprise birthday party for mutual friend Michael. Tina meets Michael's cousin
Nick, who introduces himself and helps her when she knocks open her suitcase.
Dr. Crews soon has Tina testing her mental abilities, pushing her to the edge with
insinuations of guilt over her father's death. That night, Tina senses a presence in
the lake and brings up Jason, imprisoned there by Tommy. Tina passes out, but soon
tells her mother and the disbelieving Crews of the "man in the lake." Nick comes
over to invite Tina to the birthday party that night, but the birthday
boy Michael and his girlfriend Jane are killed on the way. At the party, Tina sees
a vision of Jason killing Michael with a spike and runs home, but Crews calls it a
delusion. Nearby, campers Dan and Judy are soon killed by Jason.
The next night, after a confrontation with the stuck-up Melissa, Tina's session
with Crews goes awry, and she levitates a television at him. Tina confides in Nick
her suspicion of Michael's death, while next door, Russell and Sandra are killed when
they go for a swim. Dr. Crews goes for a walk and finds Michael's body. At her house,
Tina's mother finds that Crews has been antagonizing Tina to increase her telekinesis.
When Crews returns, he threatens to have Tina committed and she drives off - only to
see a vision of Jason killing her mother. She crashes, and makes her way back to the
house on foot. Meanwhile, Maddy leaves the cabin next door and is killed by Jason.
Tina runs into Nick on her way home and they find Michael's body. Meanwhile, Jason
kills Ben and Kate and cuts the power to the partiers' cabin before killing David.
Tina and Nick arrive at her house, and next door, Melissa goes out looking for Nick
before Jason kills Eddie and Robin. Nick heads to the party cabin, while in the woods
Jason kills Amanda Shepard. Nick finds Eddie's body, but Tina has left her house when
he returns. Tina soon finds Crews and goes looking for her mother when he says she is
"gone." Jason dispatches Crews via brush saw, and Tina heads after him.
Tina electrocutes Jason, but he rises and chases her into the party cabin. After she
telekinetically collapses the porch onto him, she runs back home and finds Nick and Melissa.
Melissa opens the door to leave, but Jason is standing there and he splits her head open with
an axe. Tina and Nick run upstairs but she turns around, ready for the final fight of mind
over matter. . .
