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The Smiths are angry and jealous when they discover that Roger has been seeing other families behind their backs, and Klaus tries to get the family to go to a Fabulous Thunderbirds concert with him.
All Episodes - S04
EPS01
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.
EPS02
Roger discovers that one of his personas has taken on a life of his own. Back at home, the Smith family becomes addicted to the 1970s electronic game Simon.
EPS03
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. Written by Anonymous
EPS04
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.
EPS05
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.
EPS06
After Hayley is dumped by Jeff, she starts dating Stan's CIA body double. But when the body double starts making moves on Francine, Stan decides to break them up in his own unique way.
EPS07
Roger tries to sabotage Stan's CIA telethon because Stan didn't give him credit for coming up with the idea.
EPS08
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.
EPS09
Stan takes a pill that allows him to stay awake all night and never be tired, so that he can have some personal time. But when Francine finds out, she decides to start taking the pills herself.
EPS10
The Smiths are angry and jealous when they discover that Roger has been seeing other families behind their backs, and Klaus tries to get the family to go to a Fabulous Thunderbirds concert with him.
EPS11
Stan finds a way to get around Langley Falls' ban on trans fats, and Roger poses as Klaus to get his inheritance for him.
EPS12
Stan and Roger go to war with each other after Roger is named president of the neighborhood homeowners association.
EPS13
Steve becomes friends with Stan's father and tries to talk Stan into helping him at his upcoming trial, while Hayley gets an internship at Roger's bar.
EPS14
When a rival steals Steve's girlfriend, Steve tries to get revenge by launching a plot to steal his Bar Mitzvah presents.
EPS15
Francine is upset when she finds out that Stan has a backup wife in place just in case she dies, so she decides to find a backup of her own.
EPS16
Stan and Steve hit the road.
EPS17
Roger helps Steve get revenge on his father when he cuts him from the football team. But when their plan is successful, Stan doesn't take it very well.
EPS18
Roger is heartbroken after he finds out that he's not The Decider and actually came to Earth as a crash test dummy, so he takes a job at a hot dog factory.
EPS19
Terry's father, a former star fullback for the Redskins, doesn't know that Terry is gay. So when he visits, Terry says he's living with Francine and that Stan is gay.
EPS20
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.