
"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."

Smirch and Capt. Slicker, plotting to steal uranium, swipe nuclear rock drills from the Ocean Patrol, but their actions cause an oil spill in the Mindanao Trench.

Marine Boy and Splasher show Dr. Mariner a time capsule they found and open it to reveal a document telling of a button that triggers tidal waves.

Taking on the appearance of the P-1, Flim Flamboyant's sub lures Ocean Patrol boats into a trap to steal their valuable cargo.

A spy smuggles a proton bomb in a lunch box and takes it to an amusement park for a rendezvous with his cohorts, but a small boy switches boxes with the spy and acquires the weapon -- with its safety function disabled.