In order to "save" Stewie from autism, Peter and Lois decide not to vaccinate him and then proceed to convince the rest of Quahog to follow suit. Stewie runs away to save himself from diseases until Sean Penn swoops in to save the day and brings vaccines to the whole town.
Family Guy — Season 15 Episodes (20)
EP 1
E1
EP 2
E2
EP 3
E3
EP 4
E4
EP 5
E5
EP 6
E6
EP 7
E7
EP 8
E8
EP 9
E9
EP 10
E10
EP 11
E11
EP 12
E12
EP 13
E13
EP 14
E14
EP 15
E15
EP 16
E16
EP 17
E17
EP 18
E18
EP 19
E19
EP 20
E20
Other Seasons
Season 1 · 9 epSeason 2 · 21 epSeason 3 · 22 epSeason 4 · 30 epSeason 5 · 18 epSeason 6 · 12 epSeason 7 · 16 epSeason 8 · 21 epSeason 9 · 17 epSeason 10 · 23 epSeason 11 · 22 epSeason 12 · 21 epSeason 13 · 19 epSeason 14 · 20 epSeason 16 · 20 epSeason 17 · 20 epSeason 18 · 20 epSeason 19 · 20 epSeason 20 · 20 epSeason 21 · 20 epSeason 22 · 15 epSeason 23 · 18 epSeason 24 · 15 ep
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