In the spirit of Christmas, the sometimes self-absorbed Mandy plays Santa by anonymously arranging a holiday surprise for Blanca, the Baxters' housekeeper. Also, when Vanessa gives Boyd a 'magical' elf doll, Ryan wants to tell Boyd it is just a doll.
Eve has posted one of Mike's politically charged vlogs on her Facebook page, but ignores the kids at school when they start giving her a hard time for her views. Vanessa worries that Eve may become an outcast for this.
The whole family is invited to Jay and Gloria's for a barbecue and football. However, an earlier incident at school between Manny and Luke makes things very awkward for Gloria and Claire, and things escalate when a not-so-flattering label is uttered.
As the kids head back to school, Phil oversteps when he misreads how Claire is coping with an empty nest. Over at Jay's, he and Gloria are in disagreement over Manny's interesting choice of outfit for his first day of class.
The guys take a fencing lesson from Barry Kripke, and Sheldon finds himself in an awkward position when Kripke expresses interest in Amy. Also, when Stuart struggles to get female customers at the Comic Book Store, Penny, Amy and Bernadette help him out.
In the midst of a nation-wide helium shortage, Sheldon and Leonard take desperate measures to get the supplies they need. Also, Penny and Bernadette download a dating app on Amy's phone to try and find her a new man.