VOIGHT DIVES DEEPER INTO ANNA’S PAST

The team works together to identify the head of the brutal Los Temidos gang.

Voight dives deeper into his informant Anna Avalos’ past when her undercover role is threatened.

Air Date: Wednesday, Jan. 19 (10:00PM – 11:00PM) on NBC.

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CHICAGO P.D. -- "To Protect" Episode 912 -- Pictured: Jesse Lee Soffer as Jay Halstead -- (Photo by: Lori Allen/NBC)