Merry Christmas

Summary

Ben, Grandpa Max, and Gwen come upon a bizarre Christmas theme park run by an evil entity who thinks Grandpa Max is Santa Claus and proceeds to trap him.

Guest stars

• Richard Steven Horvitz as Grey Matter (voice)
• Richard Doyle as Mr. Jingles (voice)
• Kim Mai Guest as Elsgood / Grandkid / Kid #1 (voice)