The Return of Gorgo #3

The American submarine the U.S.S Ripper gets trapped by an underwater rockslide accidentally caused by Gorgo. Meanwhile two researchers are working with a dolphin named Clyde. They are able to communicate with it giving orders that Clyde obeys. When they receive word about the trapped sub, they ask Clyde to communicate with Gorgo and ask him to save the buried sub. Gorgo does so saving the day.