S5, E9: The team searches for social worker Eric Hayes (REED DIAMOND - "Judging Amy"), who disappeared after forcibly removing a 7-year-old girl from the home of her violent father and desperate mother. As the team investigates the possibility that the girl's father retaliated against Eric, they also look at the families of the 19 other children with whom Eric has similar dealings. After learning that Eric lamented to his wife that he hadn't made a difference as a social worker and that he recently cleaned out his retirement account, the agents wonder if he simply left in despair. Meanwhile, Danny admits to Martin that this case hits too close to home and is dredging up bad memories of his own sad childhood. And Jack tells Samantha his big news about Anne (recurring guest star MARY ELIZABETH MASTRANTONIO).