The Man Who Grew Too Much
During a research trip, Lisa learns that Sideshow Bob is the chief scientist at a big chemical engineering company; Marge tries to teach a teen church group about healthy sexual practices.
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More from this season
S25 E1
Homerland
A parody of "Homeland". Homer starts to act strangely polite after returning from a nuclear power plant convention, prompting a suspicious Lisa to ask an intense FBI agent named Annie (Kristen Wiig) to help her solve this mystery.
S25 E2
Treehouse of Horror XXIV
The scariest Simpsons Halloween show yet, featuring an opening by Guillermo Del Toro.
S25 E3
Four Regrettings and a Funeral
Kent Brockman has decided that local news has been a real mistake and a terrible career move for him.
S25 E4
YOLO
Marge encourages Homer to cross an item off an old to-do list by inviting an old pen pal to visit; Lisa institutes an honor code at school.