SEASON FINALE

As the months-long investigation into the serial killer reaches its close, Voight must outsmart the offender in a race against the clock.

Upton must make a vital decision. 

Air Date: Wednesday, May 22 (10-11 p.m. ET) on NBC.

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CHICAGO P.D. -- "More" Episode 11013 -- Pictured: Benjamin Levy Aguilar as Dante Torres -- (Photo by: George Burns Jr/NBC)