Ultraman Episode 10: "The Mysterious Dinosaur Base"

A scientist named Nakamura was giving his animals food and they did not like it. The scientist went to feed his pet, Jirahs. He said if Jirahs is here, then there will be more fish here, but he had to be hidden. The next day, people were fishing in Lake Kitayama and they got lots of fish. The Science Patrol went to investigate the lake and its sudden increase in fish numbers. They went with the Jet VTOL equpped with the S16 submarine. Arashi had to be in the submarine. When they got there, Arashi had to put on many things like the sonar and the video recorder. After the investigation was done, Cap Muramatsu told them they could have a "special" vacation.