In this episode, the Science Patrol travels to a quiet fishing village beside a lake to investigate the sudden overgrowth of fish. What seems like a simple environmental anomaly turns out to be the work of a mad scientist hiding a terrifying secret a giant monster dwelling in the lake. After investigating the area, the Science Patrol finds nothing unusual. The Captain grants the team some time off, and Ito decides to go fishing with a local reporter. While on the lake, Ito sp