Still reeling from the death of his informant Anna, Voight faces a new threat as he tries to keep the neighborhood clean.

New wrinkles develop in the Upton, Halstead and Voight dynamic.

The team gets a new chief.

Air Date: Wednesday, Sept. 21 (10:00PM – 11:00PM) on NBC.

NUP_198538_00165.jpg

Picture 17 of 18

CHICAGO P.D. -- "Let it Bleed" Episode 1001 -- Pictured: (l-r) Tracy Spiridakos as Hailey UptonJesse, Lee Soffer as Jay Halstead-- (Photo by: Lori Allen/NBC)