When Jack hears rumors of a time portal in the underwater city of Oceanus, home of the Triceraquin race, he sets out to find the city. Upon arrival, he is welcomed by three Triceraquins: Guinness, Ringo, and Connery, who offer to take him to a time machine. However, he soon discovers that the “time machine” is really a trap planned by Aku, who promised to return their sunken city to the ocean surface for capturing Jack. Aku tries to destroy the city and drown Jack, but Jack defends the aliens and forces Aku to flee. As a reward for helping to resurface Oceanus, the Triceraquins give Jack a large supply of sushi for his travels.