When Peter takes Stewie to the park for some quality father-son time, he mistakenly takes the wrong baby home, prompting Lois to call him an idiot. Determined to prove to her that he's a responsible adult, Peter goes on a business trip to Chicago and returns as an intelligent, classy person.

Meg has fun partying with Peter when he takes her to a college for an interview. Brian must learn how to live in the wild when he gets sprayed by a skunk and is prohibited from entering the house.