The investigation into Ashley's disappearance leads the gang to a dangerous man. As Mickey reunites with his mom, Shira bumps into an old friend. And in a town filled with secrets that people would kill to keep buried, what is Mrs. Friedman—Mickey's history teacher—hiding?

Mickey learns more about the mysterious Bat Lady's past. Shira spends time with an old friend, while Ema makes a new one. At Ellen and Alan Bolitar's 49th wedding anniversary party, the family struggles to come to grips with Brad's absence.

Mickey makes an outlandish request. Shira finds herself in an awkward position. Ema reacts with rage to a betrayal. A major mystery is solved, but Mickey finds himself in over his head.