Don Ackerman

The One Next To Me. Halstead's past resurfaces when a former Army colleague is implicated. As the FBI launches an investigation into Roy's disappearance, Upton feels the pressure of the secret she and Voight are sharing.

A decapitated medic may be an evolutionary freak capable of regeneration.

Jane discovers Red’s true identity. Ali, Tom and Pete face some family truths, unaware that Jane is in trouble. Jane convinces Bird to help her bring down Gomez permanently.