The global adventure has been further developed and the popular character Fire Rabbit has joined the cast. A character that parents and children must see during the summer holidays. The film tells the story of Comma, a malfunctioning submarine who cannot join the expedition, meets herself from the future and learns that there is a terrible conspiracy behind deep-sea earthquakes and missing creatures. Will Comma, who insists on her dream when the ocean crisis breaks out, be able to make a super transformation and fight shoulder to shoulder with Pete, Pearl, Da Zhuang and Fire Rabbit? The submarine team's 80-day global adventure, full of unknowns and challenges, is officially about to set off.