When a convicted criminal takes one of the GBI agents hostage and is accused of murder, Will and Ormewood discover some evidence which could prove their innocence. Meanwhile, Angie struggles with sobriety when she finds out her former abuser is free.

A trailer park massacre leaves a young boy without his family; and Will, strongly opposed to leaving him, becomes his temporary guardian. Meanwhile, Faith receives a visit from her mother, and Angie spirals from incidents of her past.

Will goes undercover as Bill Black, a criminal with a troubled past, to take down a drug organization and find a missing DEA agent. Meanwhile, Angie aims to put her relationship with Will behind her and take matters with Lenny into her own hands.

Will, Faith and Angie find themselves embroiled in a series of cases where a similar marker links the murders of several sex offenders. Meanwhile, Angie grapples with an unexpected proposition from Amanda.