Predator

There is a monster attacking Sealab, killing everyone and eating the marrow from their bones. They try to kill the monster by getting Hesh to fill Sealab with helium so that the monster's lungs can't process it, but before damage is done the monster kills Hesh and resets the atmosphere levels. So Dr. Quinn has to find Gus (who's in surgery), who is the only person to live after a monster attack. Gus tells them what they must do, and meanwhile the monster offs Stormy, Debbie, Marco and the doctor. So eventually, the only people alive on Sealab are Captain Murphy, Dr. Quinn, Sparks and Dolphin Boy. Quinn puts Dolphin Boy into the reactor core in a meat-vest to attract the monster so they can kill the monster with a surge of nuclear power. But, because Murphy spilled Choklit Chip Juice on the console, Sparks gets electrocuted and dies. In the reactor core, the monster and Dolphin Boy become friends. Soon after, Dolphin Boy's finger is burned by the monster's touch, and they get in a fight and stop being friends, so the monster disappears. Murphy believes that the monster was repulsed by Dolphin Boy's fatness, so the only way they can stay alive is by getting morbidly obese. So Murphy and Quinn spend the next 33 months eating everything in Sealab, even Dolphin Boy. They are fatter than ever and eventually Quinn has a heart attack and Murphy eats him.

Captain Hazel "Hank" Murphy, Marco Rodrigo Diaz de Vivar Gabriel Garcia Marquez, Jodene Sparks, Dr. Quentin Q. Quinn, Derek "Stormy" Waters, Debbie DuPree, Hesh, Dolphin Boy

Somewhat similar to Space Ghost Coast to Coast in that a 1960's cartoon show (in this case, Hanna-Barbera's Sealab 2020) is re-edited with new scripts for comic effect.