Steve meets a gorgeous bug collector named Agnes Prizker and fantasizes about kissing her, which he does by accident. However, he reminds himself that he's in a relationship with Myra and goes to Laura about it. She encourages him to tell his girlfriend about it. Should he dare tell Myra the truth about what happened? Meanwhile, Carl reluctantly allows Nick Neidermeyer to join in his poker night with his buddies, per Harriette's recommendation. She immediately regrets her decision in letting her selfish boss join in and tells him off. She even goes as far as daring him to fire her. He admitted that he would fire her if he wasn't transferred to the automotive department. She and Carl kicks Nick out of their house. Later on, they have a good time playing poker with his buddies.

Carl's "bah humbug" attitude puts a damper on Urkel's plans to decorate the house for Christmas ... until the nerd announces that there's a contest for best light display and that there are prizes. Meanwhile, Harriette and Mother Winslow puts their foot down when Eddie and Laura refuse to participate in the family's holiday activities.

Carl needs one more person for his poker-playing group. Harriette joins--and beats everyone. Meanwhile, in order to be a judge at a bikini contest, Eddie convinces Steve to temporarily replace him in his job as a peanut vendor at a football stadium. However, Steve causes so many mishaps that he is terminated--along with Eddie.

Eddie takes his pranks on Laura too far by inviting her ex-boyfriends over to the house whenever Stefan is around. Laura decides to fight fire with fire by conning Steve into helping her get even with her dim-witted brother. She uses his black book, which contains phone numbers of Eddie's previous girlfriends, and invites them over on his birthday. When he and Greta arrive to his birthday party to see his ex-girlfriends, they are incensed by the whole thing. Finally, Steve sets both Eddie and Laura straight on how ungrateful they were to have each other. Steve admits that he was always jealous of them because his parents never loved him and that the Winslows were like his own family. Both siblings apologize soon after. Meanwhile, Commissioner Geiss learns a lesson that sometimes it's better if a more experienced cop, like Carl, is promoted to captain over an inexperienced cop, like his son.

Stefan suspects that Laura is starting to show feelings for Steve. He decides to switch places with the nerd to find out the truth.

Urkel and the Winslows get jobs at the mall for during the holidays.

Laura is suspicious of Maxine's wealthy new boyfriend, D'Andre Moore. After D'Andre asks Maxine to deliver an unmarked package for him, police cadet Eddie and his supervisor arrest D'Andre for dealing drugs, and Maxine apologizes to Laura. Steve accidentally goes to Washington, DC, on a train with Carl. En route he must share Carl's puny cabin for the entire trip from Chicago.

Steve and Stefan arm themselves with roses and rings as they both decide to propose to Laura. Stefan is Carl's choice because he wants Steve to return to his perfect ex-girlfriend, Myra Monkhouse, and marry her instead. Laura struggles with her choice because no matter what happens, her decision will cost her one of the guys. Harriette tells her that no matter what decision she makes, they'll support her. Steve announces that he's not going to propose to her and decides to go live in Russia with his parents. Laura decides that it is him she wants to marry, not Stefan. Steve has been a gentleman to her ever since they met and she deserves that over having a glamorous and shallow life. Carl is not happy with her decision, but he also realizes that it was hers to make.