Barry's dream of having a dog comes true, but he's disappointed when the pup takes an immediate liking to Murray; at the same time, Beverly is upset not to be included when Erica and Lainey plan a girls-only sleepover.
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.
