Sam and Melanie plan a trip to Melanie's parents' house to announce that they plan to get married, and that she is pregnant. Unfortunately, Melanie's parents already hate Sam, and everything humanly possible goes wrong for him.
A misunderstanding causes Dick and Melanie to think that the wedding is off, which causes them lose their gazebo reservation at the country club. Dick and Sam are forced to try and win it back from the person who now has it.
Sam loses the ring that Dick's mother has given them for the wedding, while Melanie is afraid to tell her mother that she thinks that the wedding dress she is giving her is ugly and that she doesn't want to wear it.
Sam talks Dick into buying Angela a car for Christmas, but Sam gets the car stolen before they make it home. Meanwhile, Angela unsuccessfully tries to keep Melanie from finding out what Sam got for her.
While Angela sits in as a temporary receptionist at Melanie's veterinary office, Dick gets locked out of the house. Meanwhile, Sam tries to weasel out of watching a graphic video in Melanie's childbirth class.