Albert finds himself in trouble when Conrad is drafted into the army, so he and Rose come up with a last-ditch publicity stunt to premier one last hit Conrad Birdie record before he is sent to the army. They plan to have Conrad sing Peterson's new song "One Last Kiss" on live television, and give one lucky girl from his fan club a real 'one last kiss' on The Ed Sullivan Show' before going off to war'.

The lucky girl is chosen randomly from Conrad's national fan club, and it happens to be Kim MacAfee. Rose, Conrad, and Albert set off to her house in Sweet Apple, Ohio to prepare for the event. However, things don't go quite as planned; Kim's father becomes obsessed with the prospect of being on The Ed Sullivan Show along side his daughter, Kim's boyfriend becomes disastrously jealous of Conrad, and Conrad himself becomes tired of the show business life and tries to teach the kids how to party - ultimately getting himself in trouble with the law.