Casey finds himself in dangerous territory when working undercover to bring down a trafficking ring; Dawson realises that her life is about to change; a new candidate makes an unusual first impression.
A case involving one of Chicago's most wanted fugitives takes a personal turn for Olinsky; Sean Roman is in trouble after an altercation with another officer; Platt helps Nadia prepare for a polygraph test.
Michael intervenes when a vengeful lawyer starts killing off gang members; Michael and Jesse try to track down a stolen document.
Cautiously, members of our group must venture into a familiar location on a heroic rescue mission. It's a huge stage, but so are the stakes.
Rules and morals have been tossed aside by new enemies. Rick will try to find a peaceful agreement, but they might prefer violence.