S1·E51 Kid vs. Kat vs. Christmas (1)
Aired May 29, 2010
Synopsis
Coop's hopes of a normal Christmas are shattered by the fact that Kat is constantly getting him in trouble; it is revealed that Kat really misses his family back at his home planet. Coop and Millie's grandparents are expected to visit for the Christmas, but many troubles cause them to be late.