"Trick or Threat " is the 24th episode of Kid vs. Kat and the 24th episode of Season 1. It aired on October 10, 2009 after Beware The Were-Coop.
Plot Summary
On Halloween, Coop and Dennis plan on trick or treating... Much to Kat's hating, as he tries to communicate with his home planet setting up a rendezvous. In order to stop a feline invasion, Coop and Dennis are forced to pay the ultimate price empty trick or treat sacks.