Who Smarted?Worried that he's not smart enough for Hayley, Jeff undergoes an experimental intelligence enhancement procedure at the CIA. Roger recruits Steve to help him harvest snake venom.
Russian Doll
E2
Russian DollStan becomes infatuated with a doll that the CIA wants to use to spy on the Russians.
Stan Moves to Chicago
E3
Stan Moves to ChicagoStan moves to Chicago to become a comic while Steve and Hayley host Roger for a nice night in.
Shakedown Steve
E4
Shakedown SteveSteve and Jeff try to bond as brothers while the rest of the family visits an escape room.
Klaus and Rogu in "Thank God for Loose Rocks": An American Dad! Adventure
E5
Klaus and Rogu in "Thank God for Loose Rocks": An American Dad! AdventureWhen the family goes to a dude ranch, Klaus and Rogu have to work together to survive in the wilderness.
The Wondercabinet
E6
The WondercabinetSteve spins out about his future, but a radio show about new age mysticism gives him a hopeful new understanding of life. Roger struggles to get into the adult film industry.
Little Bonnie Ramirez
E7
Little Bonnie RamirezAfter a series of boring personas, Roger goes to great lengths to prove to Francine he still has "his edge".
Dancin' A-With My Cells
E8
Dancin' A-With My CellsStan tries a new, cutting edge parenting approach DNA splicing.
Mused and Abused
E9
Mused and AbusedRoger reveals a secret passion to Klaus; Stan and Francine seek revenge on Bazooka Sharks management.
Henderson
E10
HendersonStan's childhood imaginary friend returns to collect a debt. Klaus has a big date and needs a fishbowl upgrade.
Hot Scoomp
E11
Hot ScoompHayley searches for guidance and instead finds a community of 'cool butts.'
Lumberjerk
E12
LumberjerkStan is forced to partner with Jeff in a lumberjack competition; Steve, Francine and Snot enter a contest to win a vintage pickup truck.
Stan & Francine & Stan & Francine & Radika
E13
Stan & Francine & Stan & Francine & RadikaStan and Francine go back in time to settle an argument.
Flush After Reading
E14
Flush After ReadingFrancine and Roger get lost in a good book -- or five -- after Francine escapes an embarrassing situation; Stan reluctantly hangs out at the library.
Comb Over: A Hair Piece
E15
Comb Over: A Hair PieceStan finally decides to do something about his secret baldness and enlists the help of Josay Bosay, Roger's famed hair-stylist-to-the-stars persona.
Plot Heavy
E16
Plot HeavyAfter Stan sells off the coveted family plot, the family opens their own cemetery in the backyard with the help of basketball Hall-of-Famer Scottie Pippen.
The Sinister Fate!!
E17
The Sinister Fate!!A new friendship causes Hayley to start worrying she might be slowly turning into Francine. Steve and his friends try out for Roger's improv troupe.
Dr. Sunderson's SunSuckers
E18
Dr. Sunderson's SunSuckersHayley and Jeff help one of Roger's personas run a solar company.
Family Time
E19
Family TimeStan and the family go out to dinner at a buffet restaurant. Roger becomes a flower.
Cry Baby
E20
Cry BabyWhen Stan realizes he can't cry, he asks Steve to teach him empathy.
Crystal Clear
E21
Crystal ClearStan gets in over his head trying to impress Toshi's dad; Klaus and Jeff head to the country for a weekend getaway.
Steve's Franken Out
E22
Steve's Franken OutWhen Principal Lewis threatens to cancel science club, Steve takes matters into his own hands in a monstrous way.
Cast of Season 18
Seth MacFarlaneStan Smith / Roger (voice)
Wendy SchaalFrancine Smith (voice)
Rachael MacFarlaneHayley Smith (voice)
Scott GrimesSteve Smith (voice)
Dee Bradley BakerKlaus (voice)
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