Michael Hogan

When Intelligence follows up on a tip about an upcoming drug trade, the team discovers a man's mutilated body; Burgess helps plan a surprise for Platt.

Chastain is flooded with concertgoers when a stampede at a music festival leaves many in need of doctors; Bell stirs the pot when the hospital's revered orthopedic surgeon demands a better resident.

A new group of interns, which includes Billie's son, start their first day; Kit and Bell try to convince Conrad to come back to Chastain; Leela and Padma deal with an unexpected visit from their parents.

Conrad must diagnose a young woman who gets admitted after having extreme night terrors; Devon faces his first Halloween in the emergency room; Nic panics over her decision to bring her newly sober sister to Mina's epic annual Halloween party.

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.