The Eds find out that the candy store is selling jawbreakers for free but they encounter obstacles on their way. Eddy keeps reusing the same scam, only slightly tweaked each time.
The Eds hatch an idea for a scam that's main purpose is going "up." Ironically, it all goes downhill from there. The kids hold an election to determine the King of the cul-de-sac.
Eddy and Edd try to build a set for a scam, but Ed's stinky cheese chunk named Sheldon gets in the way./Eddy obtains a phone from Rolf and soon becomes convinced that it's cursed.
Captain Melonhead swears to stop Eddy from scamming the kids forever, Eddy retaliates. While teasing Kevin when he is grounded for the day, Ed and Eddy trick Double-D into thinking he has a fatal disease.
Double D and Ed try to stop Eddy when he takes Plank's parents on a tour of the cul-de-sac. When Eddy runs out of scam ideas, he consults Jimmy for help.
A mysterious boomerang flies around the Cal-de-sac, and the kids begin to act out of character upon obtaining it. The Kankers destroy the Cul-de-sac in search of their missing ship in a bottle.