A mysterious person cleans up Miseryville and Detective Jimmy wants to solve it.

Jimmy creates the perfect sandwich, but a wild-west cowboy, "Cowboy Stackhouse," claims it and believes it to be a real lady. Jimmy must then convince him the sandwich is actually alive.

Lucius gets sick of Jimmy, Heloise, and Beezy bothering him by acting out their favorite show "Super Slugmeister," so he tricks them into competing against each other for the non-existent role of Slime, Super Slugmeister's sidekick.