The family is gathered at Jay and Gloria’s pool on a sunny December day, and that’s where they realize that everyone will be scattered this coming Christmas, so if they want to celebrate together, then it will have to be today! Everyone sets off with their respective duties for Express Christmas – Mitchell, Alex and Lily get the tree, Jay and Cameron are in charge of gift wrapping, Phil and Manny get the groceries, Gloria and Luke go retrieve the ornaments, and Claire and Haley shop for all the gifts. When they all return in the evening, it’s quite a sight.
Christmas is in full swing at the Dunphy house until the kids get in some trouble and Phil and Claire threaten to take away Christmas until one of them fesses up. Meanwhile, Jay struggles with wanting to stick to his holiday traditions while Gloria and Manny want to incorporate some of their Colombian practices, and Mitchell and Cameron take Lily to the mall for her first picture with Santa -- but end up with a disgruntled mall Santa on their hands.
Eight-year-old Brittany comes into the Psych office in desperate need of help. She wants to hire Shawn and Gus to get Santa out of jail. She saw him being arrested at the mall and they need to get him out by Christmas Eve so he can deliver all the presents. She is so distraught that they agree to look into it as soon as they stop by the Gusters' to see Gus' big sister Joy, who has come home for the holidays. Gus is excited to see her but Shawn's feelings are mixed. He and Joy had a secret one-time fling and he doesn't want history to repeat itself behind his best friend's back. But Jo