One night, as children, Mutta and Hibito saw what they thought was an UFO passing close to the Moon. Becoming fascinated by space, they promised each other they'd be astronauts and that one day they'd ...

As the survival training draws to a close, Nitta suddenly tells the team he needs to backtrack due to losing his cell phone, but Mutta stops him. However, Mutta appears to have an idea in mind.

Eddie Jay's arrival has given the CES-62 sub crew a much-needed jolt. After a night jog brings the crew closer together, Eddie suggests that the crew members share their stories.