Following the deaths of several members of the team and a college administrator, the few surviving team members and one of their girlfriends hatch a plan to kill off the monster leeches. They will draw them to the campus swimming pool by having one of the swimmers act as bait. Then they'll electrify the pool, electrocuting the leeches. Tragically, the team coach, who's been infected by a leech, attacks them, delaying the electrification just long enough to allow the leeches to kill one last swimmer. Finally the coach is subdued and the switch is thrown, frying the leeches.