The Smith family forgets to celebrate Father's Day, and so to make it up to Stan, they plan out the perfect day. Stan uses a CIA device to erase their memories and have them continually plan perfect days for him.
Steve and his friends take up witchcraft to gain power and popularity at school. Stan and Klaus become obsessed with remembering 90s bands.
Stan goes undercover as a surfer a la Point Break. Steve befriends a drifter, Hayley might be pregnant and Roger wants the World Cup to be held in their backyard.
Roger becomes a teacher at Steve's school and gets involved with a class of underprivileged kids. Meanwhile, Stan and Francine visit a retirement home and Stan decides to stay.
Steve and Snot alter their futures when they throw a party for the uncool kids. Meanwhile, Roger is disgruntled when a waitress doesn't compliment his order and Stan and Francine go on vacation in Bosnia.
Roger loses his identity after becoming fascinated by a local dentist's wife. Meanwhile, Klaus throws a party when Stan and the kids are unable to move from being sore after working out.
When Stan is on a mission, Francine pretends she's a widow. Steve and his friends play wrestling and get beat up by Principal Lewis.
Francine joins in on Steve and his pals' live-action role-playing game. Stan opens a knock-off Seaworld in the house.
Stan loses his faith in religion after Steve questions everything in the Bible. He takes the family to Korea to investigate the rumors of a reinvented "Noah's Ark."
Stan and Francine lose their memories and resort to primitive living on an island, Hayley and Jeff are rescued by the Navy and Jeff decides to enlist, and Roger and Steve try to survive on a lifeboat in the middle of the ocean.
When Roger breaks his ankle, Francine convinces Stan to let him play in his basketball league. Meanwhile, Steve sings a song that parodies R. Kelley's "Trapped in the Closet."
When Stan discovers a salt mine in the backyard, the Morton Salt Company wants to buy it. It turns out Steve is the rightful owner of the land and he faces pressure from the family to sell.
When Steve gets the chance to sing the Star-Spangled Banner at a Veterans' Day event, Stan takes it upon himself to be Steve's vocal coach. Dissatisfied with Steve's progress, Stan signs Steve up for a Vietnam reenactment in the hopes that a little battle experience will help Steve to truly understand the national anthem. But the pressure of mock war, along with Stan's coaching, gets to Steve causing him to become a relentless reenacting machine.
As part of a CIA assignment, Stan must court a South American dictator in order to gain access to his country's oil reserves.
When Steve has the house to himself while the rest of the Smiths are away, he and his friends crash and then lose $50 million military drone that is under the care of his father.
Stan poisons Roger in an attempt to keep Roger from leaving home. But when Roger slips into a coma, Stan must use experimental CIA technology to go into Roger's mind in order to wake Roger up. Meanwhile at summer camp, Steve and his friends attempt to become cool kids through unorthodox means.
Stan vows to live out all the teenage pranks he missed with Steve and his friends. But when they are caught, he winds up going to prison.
Stan agrees to renew his wedding vows in an elaborate ceremony (coordinated by Roger) as a gift to Francine for their 20th anniversary. But when Stan reveals that he only married Francine for her looks, Francine quits her exercise and beauty regimen. Unable to stomach Francine's new appearance, Stan has his retinas removed by the CIA scientists. Now Francine must care for Stan while he gets to know the real Francine. Meanwhile, Hayley and Steve look for an anniversary present.
After attending a concert with Hayley, Stan becomes obsessed with her music.
When Hayley rejects Stan's advice, he decides to start a dry-cleaning business run by a bunch of strippers. But when the business fails miserably, he is forced to become a male stripper to make some extra money.
It's Christmastime and Rapture-time, but Stan and Francine (along with Roger) find themselves left behind while Steve and Hayley get to ascend to heaven.