The Simpsons Season 20 Episode 13
Gone Maggie Gone
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.
20 - 21Coming to HomericaMay. 17, 2009- 20 - 20Four Great Women and a ManicureMay. 10, 2009
- 20 - 19Waverly Hills, 9021-D'OhMay. 03, 2009
- 20 - 18Father Knows WorstApr. 26, 2009
- 20 - 17The Good, the Sad and the DruglyApr. 19, 2009
- 20 - 16Eeny Teeny Maya MoeApr. 05, 2009
- 20 - 15Wedding For DisasterMar. 29, 2009
- 20 - 14In the Name of the GrandfatherMar. 22, 2009
- 20 - 13Gone Maggie GoneMar. 15, 2009
- 20 - 12No Loan Again, NaturallyMar. 08, 2009
- 20 - 11How the Test Was WonMar. 01, 2009
- 20 - 10Take My Life, PleaseFeb. 15, 2009
- 20 - 9Lisa the Drama QueenJan. 25, 2009
- 20 - 8The Burns and the BeesDec. 07, 2008
- 20 - 7Mypods and BoomsticksNov. 30, 2008
- 20 - 6Homer and Lisa Exchange Cross WordsNov. 16, 2008
- 20 - 5Dangerous CurvesNov. 09, 2008
- 20 - 4Treehouse of Horror XIXNov. 02, 2008
- 20 - 3Double, Double, Boy in TroubleOct. 19, 2008
- 20 - 2Lost VerizonOct. 05, 2008
- 20 - 1Sex, Pies and Idiot ScrapesSep. 28, 2008
