Chicago P.D.

Still reeling from the death of informant Anna, Voight faces a new threat as he tries to keep the neighbourhood clean; new wrinkles develop in the Upton, Halstead and Voight dynamic; the team gets a new chief.

When a convicted murderer hijacks a prison van, the team scrambles to find him and the abducted prison guard before it's too late; Burgess questions Ruzek's motives in a case, creating tension between the two.

The team investigates a string of brutal pharmacy robberies, and Halstead connects with one of the victims about their Army careers; Upton suspects there is more to the story and confides in Voight.

A shocking murder pulls rookie officer Dante Torres into his own neighbourhood; as Voight and Atwater help him navigate the case and manage tricky personal dynamics with wary neighbours, Torres realises his life may be forever changed.

Upton's dogged pursuit of a missing teenage girl leads the team into a dark web of human trafficking; chief O'Neal becomes involved with the unit's investigation when it becomes evident his son, Sean, has a connection to the missing girl.

Atwater's reactions during a tense arrest are called into question; the team must dig in to uncover key evidence that could aid in the ongoing investigation and clear Atwater's name.