Doug and Carrie are roped into helping out at their church during the holidays: he guards the manger, while she tries to bake a cake. Also, Arthur and Spence attempt to write a Christmas song so they can cash in on the holiday.

Doug discovers that his mom is a great poker player so he persuades her to enter a high-stakes game; Spence tries to help Carrie lose her accent so she'll have a better chance of getting a promotion.