Aqua Unit Patrol Squad 1

It's Halloween at the Aqua Teens' house and Master Shake is the only one who isn't into the Halloween spirit. Meatwad is dressed as "The Incredible Plum" while Frylock is a ghost sailor. Shake does not want anything to do with the holiday.

Meanwhile, a monster that is a cross between an onion and a spider comes into the house carrying an electric razor he attempts to use to scare people. However, no one is frightened. The monster reveals himself as "Willie Nelson", and he lives in the Aqua Teens' attic and is missing mail that Frylock has carelessly tossed in the garbage (Willie responds to that by throwing the Aqua Teens' TV out of a window).

Shake decides to take Willie under his wing and make him scarier. His first attempt, to scare Carl, fails miserably and Shake has to cover by throwing Meatwad at Carl (which amazingly succeeds). Later, Willie goes over to Carl's house with a plan and two chainsaws, as Shake tells him to say "nice head, I think I'll take it." The plan fails, as Willie's chainsaws are not long enough to reach Carl's house, and Carl pays Shake back by throwing Meatwad at him.

A furious Shake decides to raise the stakes. He hooks up Carl's doorknob to a high voltage power station and has Willie drive a cement mixer full of blood to the front door. Again, the trick backfires as Carl uses Meatwad's "Plum" mask to scare Shake. Shake falls back into the power station, giving him a severe electrocution, and Willie dumps the blood all over him.

The two go back to the house and Willie heads back up to the attic to get some "juice" and recharge. Frylock finds some of Willie's mail and brings it up only to discover a horrible truth- Willie is a serial killer and keeps the body parts of his victims in the attic. Shake enters and is horrified, as are Carl and Meatwad when they arrive on the scene. A thirsty Willie yells "JUICE!" upon seeing Carl, then rips both of his arms off and drinks the blood out of them. The freaked out Aqua Teens run away and seal off the attic, leaving Willie unable to get out for eternity.