Sam and Mel are thrilled that they are having a baby, and can't wait to go visit Mel's parents to give them the news. But unfortunately for Sam there are many mishaps that get in the way. First Sam is delayed at an office party by a drunk, flirtatious co worker, who throws up on him. When he tries to shower at her place while she is passed out, she wakes up and throws him out with no clothes on. He shows up in a garbage bag as a diaper to his future inlaws. It all goes down hill from there.