What's better than a TV? An HDTV. And what's better than that? An ASHDTV. And what does the AS stand for? You probably guessed: Adult Swim. But it's: Asteroid Smasher. And that's what the crew of Sealab stole from Spacelab.
When Shanks refuses treatment for a festering, pulsing head-tumor, the crew decides to dust off the old shrink ray and then basically reenact the plot of a 1960's sci-fi movie starring that actress.
Enter the sinister and mysterious world of the Neptunati, a secret organization that holds the fate of the world in its clutches. And which also, for some reason, has Shanks as a member.
With Marco's untimely passing, his illegitimate son applies for a job on Sealab. In order to get hired or at least get qualified, he must pass the civil service exam.