S04E31: Peter's Excellent Adventure

Peter learns that Alycia is dead. Amanda punches him for setting up Bobby, but later forgives him. Kimberly resurfaces and agrees to serve as Peter's alibi. However, she has turned into Betsy again. She injects Peter with a paralyzing drug and has him committed to a mental hospital that she is temporarily running. Alison stops Jake from killing Richard. Jane tries to file rape charges, but learns that she has no case. Jake and Alison are stunned when Jane says that she is continuing her partnership with Richard. Jane is actually planning revenge, and begins hanging around the shooting range. Billy asks Jake to help him win back Alison. Matt is accidentally injected with tainted blood during a struggle with a street kid at the hospital.