Michael Hogan

When Intelligence follows up on a tip Antonio and Halstead received from a reliable informant about an upcoming drug trade, the team is shocked to discover the mutilated body of a man; upon further investigation, the body is identified as a government official and when Olinsky, Ruzek, Lindsay and Halstead question the man's acquaintances they discover he had access to very important devices; Burgess helps plan a surprise for Platt.

Devon and Conrad must rely on ex-convicts to save a woman's life; Nic continues her search for evidence to incriminate Lane but must simultaneously tend to her sister, who is rushed into the emergency room; York's mother needs a risky procedure.

Just when Mina and The Raptor can see their future together, an unexpected complication throws a wrench in their plans; Cain faces a harsh reality when Kit gives him the opportunity to prove he is ready to return to the operating room.

While looking for a distraction on Halloween, Conrad treats a group of witches who send the ER into chaos; Devon treats a patient who thinks he is being haunted by ghosts; Bell picks up a hitchhiker who is not what he seems.

Nic and Mina treat a patient battling a failing heart VAD, forcing them to find a new battery to save her life; Conrad gets a call from a patient who is in crisis; Cain tries to get close to Bell's business partner from the supplement company.

Conrad brings a patient into the hospital who causes a security crisis; an MMA brawl sends a well-known fighter to Chastain and all hands are on deck; Bell and Raptor vie for the same position at the hospital; Leela gets a visit from her sister.