Stan and Francine are upset when Steve reaches puberty. However, Francine wants him to stay young, and Stan wants him to skip puberty and go straight to 21. And both of them use top-secret CIA technology to make sure it happens.
When Stan becomes his boss's go-to guy, he feels like he can't say no to anything including outrageous personal requests. But when Francine gets roped into the annoying ordeal and her romantic Valentine's Day get-away is ruined, she lays down the law and forces Stan to say "NO".
When Stan finds out that Francine was engaged before they met to a man who disappeared in a plane crash but is still alive, he launches an elaborate plan to find out if she would choose the other man instead of him.
Steve gets revenge on the popular kids at his school after they smear his girlfriend who was running for class president. But he later learns that somebody else was responsible for the attacks, and the popular kids want revenge.
Steve has to wear a back brace because of his Scoliosis, but then finds out that Stan has been bald since college. Meanwhile, Roger, Francine, and Hayley go to a spa together even though they only have two free passes.
Stan's night out of fun with the guys from the agency snowballs into a kidnapping situation, and could possibly end in murder. Meanwhile, Roger doesn't realize that he's been invited to a fraternity "pig party."