When a group of trespassing seniors swim in a pool containing alien cocoons, they find themselves energized with youthful vigor.
On April Fool's Day weekend, a group of college friends gather together at a secluded island mansion to celebrate their final year of school, where they soon become prey for an unseen murderer.
Tina Shepard, a telekinetic teenage girl, accidentally unchains Jason from his watery grave, allowing him to go on another killing spree in the area.
Tommy Jarvis, tormented by the fear that maybe Jason isn't really dead, unwittingly resurrects the mass murderer for another bloody rampage.
The reinvigorated elderly group that left Earth comes back to visit their relatives. Will they all decide to go back to the planet where no one grows old, or will they be tempted to remain on Earth?
