
"Marine Boy" is produced in Japan but is intended for US audiences; it is one of the first color cartoons to come from Japan, soon to be sharing syndicated screen space with the likes of "Kimba the White Lion" and "Speed Racer."

Two master criminals escape from an underwater prison farm and use the P-1 as their getaway boat with Bullton and Piper as hostages.

Suddenly, the desert is flooded with seawater; the Ocean Patrol believes that someone is illegally mining uranium beneath the desert.

After a supposedly unsinkable nuclear vessel disappears in a storm, Marine Boy suspects sabotage and begins a search.

Marine Boy's specially designed boat explodes before a race and signs point to sabotage via a remotely controlled missile.