深圳市环球数码影视文化有限公司

Happy Little Submarine Magic Box of Time is a 2015 Chinese animated adventure film directed by He Zili.

Due to being attacked by a legendary sea monster, Deepsea Base launched an arrest plan. However, Comma discovered that the sea monster was actually just a cute little dragon. With the unremitting efforts of Comma and his friends, they finally resolved the misunderstanding of the sea monster and reunited the little dragon and its mother.