This season centers on the 400th milestone episode, in which CIA agent Stan Smith survives a dangerous mission only to discover that the CIA has already replaced him with a clone when he returns home to find his duplicate living his life. The season also features the return of Francine’s sister Gwen and a chaotic pool incident where Francine takes drastic measures to clear the water.
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Episode 1
Aw Rats, a Pool Party
The Smiths are having a pool party! Everyone is coming, including Francine's sister and Steve's ex! Wait, is that a dead rat in the pool?
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Episode 2
The Flume Flume Room
Stan struggles to appreciate Francine's niche interest in flume rides.
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Episode 3
Powering Through
Stan is determined to prove that there's no illness he can't power through, even if it ends up killing him... and everyone else.
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Episode 4
Camera Stan
Stan thinks he has what it takes to thrive on reality TV; Klaus gets himself a Klaus.
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Episode 5
Idol Threat
The school bully saves Steve's life at the carnival and is celebrated as a local hero by everyone but Steve.
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Episode 6
The Treasure of Old Chinatown
Steve and Bah Bah, along with a reluctant Francine, set out to discover an ancient Chinese treasure. Roger becomes an online food influencer.
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Episode 7
Reaper Madness
After experiencing a euphoric high from a scary story, Klaus and Hayley band together to search for their next fix.
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Episode 8
Dude, You’re Getting a Del!
Klaus becomes Snot's father figure to woo Snot's mom. Meanwhile, Hayley opens a cat café and hires Roger's infamous cat persona, Marmalade.
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Episode 9
Where the Wild Boars Are
Jeff comes of age with the help of an old man. Roger takes care of a "special" shed.
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Episode 10
Dumbston Checks In
Steve and Principal Lewis team up to save the school while Stan seeks out a decent meal.
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Episode 11
A Donkey’s Shame
Stan and Francine drive to Vegas to confront John Mayer.
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Episode 12
400?!
Stan nearly dies on his 400th mission and returns home to realize the CIA's secret clone program has already replaced him.
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Episode 13
Tales from the Outer Frontier
In this three-part anthology of self-contained tales, the Smiths take on new roles across the harsh frontier of space, confronting mortality, purpose, and that relentless Mars dust.