Alan fields a difficult request from Shirley after her father suffers an injury while in the late stages of his battle with Alzheimer's; Carl represents a group of Nantucket residents who are concerned about homeland security; Jerry's new girlfriend sues him for sexual assault.

It's a lawyer's dream come true for Alan when he presents an appeal to the U.S. Supreme Court in a case involving a mentally challenged man who was convicted of statutory rape. Meanwhile, Lorraine shares startling news with Katie about Jerry's girlfriend.

Jerry comes to the aid of his ex-girlfriend when she's collared for prostitution; Carl and Shirley help a woman who's suing the church for prohibiting her from becoming a priest; Denny is wooed by power brokers to run for president.