Highlights from past episodes and a preview of the fourth season. Included are retrospectives on Susan and Mike's relationship, Bree's family troubles, Lynette's marital give-and-take, Gabrielle's tumultuous love affairs and Edie's machinations.

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I. Marlene King and Troian Bellisario
Troian Bellisario recalls her wildest PLL fan encounters

The Pretty Little Liars star and creator recall their wildest -- and sometimes incredilbly uncomfortable -- encounters with fans