Homer discovers that his mother is still alive, a former radical who is a fugitive from the law. When her old nemesis Burns spots her and tips off the FBI, she is forced to return to the underground.
|First Air Date||:||Dec 17, 1989|
|Last Air Date||:||May 20, 2018|
|Number of Episodes||:||639|
|Number of Seasons||:||29|
|Casts||:||Nancy Cartwright, Dan Castellaneta, Julie Kavner, Yeardley Smith, Harry Shearer|