Happy Little Submarine20000 Leagues under the Sea-潜艇总动员：海底两万里

Mysterious sea monsters have been destroying merchant ships around the world, causing panic and rumors that the ocean is facing a disaster. Submarine Ali decided to gather his friends to track down the "sea monster", but found that the "sea monster" was a high-tech submarine that used "environmental protection" as an excuse to carry out evil plans. In order to solve these mysteries, Ali and his friends used the knowledge they had learned and began a roaming adventure of 20,000 leagues under the sea.