While helping Grace shop for a dress for the occasion, Joan is delighted to finally meet Grace's seemingly perfect mother, Sarah. However, when Sarah's drinking problem becomes evident, Joan begins to understand why Grace is so private – and why she's long been avoiding having her bat mitzvah. Meanwhile, Luke racks his brain to come up with a meaningful bat mitzvah gift for Grace. Additionally, Adam and Joan have different ways of coping with Judith's death. Will supports Lucy's less-than-legal means of trying to get one of Judith's friends to describe Judith's on-the-run killer, and Kevin's ex-girlfriend is deposed for the trial.

After Price discovers Joan holding an empty egg carton near his freshly egged car, he wrongly assumes she's the culprit and punishes her with a weekend of community service. Without more direction from God than to rise above the injustice, Joan tries to figure out if she's meant to help a bitter former nun, Lilly, who is overseeing the service project, or one of the social outcasts who are serving as a result of their own offenses. Meanwhile, Joan's also upset that her reluctance to begin a sexual relationship with Adam is driving a wedge between them.

Also, Adam meets a troubled artist at the community center; Joan gets Luke a job at the bookstore; Kevin has another car accident.

In the wake of Joan’s breakup with Adam, God tells her to do some house cleaning, which puts her in the middle of a school scandal.