Happy Little Submarine Collection

Watch order for Happy Little Submarine Collection — 5 films by release date.

1. 潜艇总动员 (2008)
2. Happy Little Submarine: Magic Box of Time (2015)
3. Happy Little Submarine: 20000 Leagues under the Sea (2018)
4. Happy Little Submarine: Space Pals (2019)
5. Happy Little Submarine : Around the World in 80 Days (2023)