Grampa escapes from his retirement home, and when Homer and Marge frantically try to track him down, they follow clues that reveal secrets in Grampa's past. They find that he worked at a local restaurant with Marvin Hamlish (guest-voicing as himself) and met and fell in love with the restaurant's singer Rita LaFleur (guest voice Anika Noni Rose, "Private Practice"). Meanwhile Lisa tries her hand at online poker, getting tips from the experts, including Jennifer Tilly (guest-voicing as herself) but is soon gambling with her college fund in the all-new "Gone Abie Gone" episode of THE SIMPSONS airing Sunday, Nov. 11 (8:00-8:30 PM ET/PT) on FOX. (SI-2316) (TV-PG D, L, V)

Voice Cast: Dan Castellaneta as Homer Simpson; Julie Kavner as Marge Simpson; Nancy Cartwright as Bart Simpson and Nelson; Yeardley Smith as Lisa Simpson; Harry Shearer as Skinner; Pamela Hayden as Milhouse and Jimbo; Tress MacNeille as Dolph

Guest Voice Cast: Anika Noni Rose as Rita LaFleur, Jennifer Tilly as herself and Marvin Hamlish as himself.