"Marge in Chains" is the twenty-first and penultimate episode of the fourth season of the American animated television series The Simpsons. It originally aired on the Fox network in the United States on May 6, 1993. In the episode, Marge is arrested for shoplifting after forgetting to pay for an item at the Kwik-E-Mart. The family hires attorney Lionel Hutz to defend her at trial, but she is found guilty and sentenced to 30 days in prison. Homer and the rest of the family have trouble coping without Marge.

The fourth season of the American animated television series The Simpsons originally aired on the Fox network between September 24, 1992, and May 13, 1993, beginning with "Kamp Krusty". The showrunners for the fourth production season were Al Jean and Mike Reiss, with the season being produced by Gracie Films and 20th Century Fox Television. The aired season contained two episodes which were hold-over episodes from season three, which Jean and Reiss also ran. Following the end of the production of the season, Jean, Reiss and most of the original writing staff left the show. The season was nominated for two Primetime Emmy Awards and Dan Castellaneta would win one for his performance as Homer in "Mr. Plow". The fourth season was released on DVD in Region 1 on June 15, 2004, Region 2 on August 2, 2004, and in Region 4 on August 25, 2004.