Barry realizes that as a future doctor, he should be more concerned about Murray's health, so he enlists the Jenkintown Posse and Coach Mellor to help get his father in shape. Meanwhile, Beverly is horrified to learn that Erica and Adam don't want any of the priceless heirlooms in her fancy, never-really-used living room,.

Much to Beverly's chagrin, Barry is thrilled that he gets to celebrate Christmas now that he is engaged to Lainey. Meanwhile, Murray's brother Marvin makes a promise to Adam with a surprising outcome.