Cody makes the world's largest Jack-o-Lantern and Mark discovers an alien life.

It's christmas time at the Lambert/Foster's and J.T. decides he's to old to spend Christmas with the family and he wants to go skiing with his buddies.Frank doesn't want him to, but doesn't object.J.T. realizes the minute they arrive at the cabin that he made a mistake and would rather go home.He calls Cody and confesses, but refuses to call Frank.Cody talks Frank into going to see J.T. and he admits he would rather be home with the family and Frank says he wants him home too.