Ang's Christmas Party turns ugly as Karen and Ramona team up to confront Carla about pulling a butter knife on Renee. Renee takes the girls on a road trip to find the perfect thing to protect her family: an attack dog. Later, Karen and Ramona head to Arizona to uncover the truth behind Dave's new relationship -- and make an explosive discovery. Carla celebrates her birthday with her "true" friends, and Drita moves forward on her new makeup store. While out West, Karen's brother Gerard tells Karen there may be a way to get their father, Sammy "The Bull," out of prison.