"Undersea+fleet+submarine+707f"
![Undersea Fleet Submarine 707F](https://image.tmdb.org/t/p/w300/4wNQu1sCu2ZRLjC8rY2pzDemohf.jpg)
Undersea Fleet Submarine 707F
A mysterious object attacks and destroys any ship or submarine. Submarine 707 has the mission to search for that mysterious object, when summoned by a whale to follow it. The whale leads them to the world of Mu. But on their way they meet the mysterious object. They find out , it is Commander Red Silver, who had attacked the world of Mu to get Mu's..