[1] In the episode, when the Retirement Castle is closed for health violations, Marge invites Grampa and two other old people to live at the Simpsons' house, only to get frustrated with Homer embracing the "old person lifestyle".
Meanwhile, Bart defends Nelson's decision to wear his mother's underwear, and ends up part of a bully gathering in an homage to the 1979 action film The Warriors.
Marge and Homer arrive home from a date when Lisa tells them the Springfield Retirement Castle has been shut down for massive violations, and Grampa has nowhere to live.
When Grampa is picked up by the family, Marge sees that Jasper and the Old Jewish Man have no one, so she invites them to stay with them.
Unfortunately, Homer's appreciation for all things elderly irritates Marge, and she tells Patty and Selma that while she did not mind when he got bald and fat, she never expected him to act older than her.
The bully begins crying and runs off with his allies while Bart, Homer, and their crews walk back home.
[2] The song "In the City" by Joe Walsh, which appears on the film's soundtrack, plays over the episode's end credits.