The Simpsons Se20 Ep13 Gone Maggie Gone

Gone, Maggie, Gone is the thirteenth episode of Season 20. It originally aired on March 15, 2009. The episode was written by Ian Maxtone-Graham and Billy Kimball and Chris Clements directed. Ed Begley Jr. guest starred.

Lisa infiltrates a convent in order to steal back Maggie who was accidentally taken in by nuns. While in the convent, Lisa uncovers a series of cryptic clues leading to a hidden jewel in Springfield. With help from resident history buffs Principal Skinner and Comic Book Guy, Lisa sets off to find the coveted prize. But Springfield’s Freemasons are also hot on the trail of the jewel, and Lisa must race against them to find the jewel and rescue Maggie.