You gotta hand it to Officer Kim Burgess of Chicago P.D. She has a real knack for sniffing out trouble. It's good for the residents of the Windy City, but bad for Burgess (Marina Squerciati) and, oftentimes, her partner Officer Sean Roman (Brian Geraghty).

In this exclusive sneak peek from Wednesday's new episode (10/9c, NBC), Burgess sees two men who may have a gun. Instead of following protocol, though, she goes after the men and knocks on their door - only to be greeted by an unconscious man with a very serious gunshot wound. [Insert the worst knock-knock joke ever here.]

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But that's nothing compared to what Officer Roman finds on the other side of the door. Check out this exclusive video below:

Chicago P.D. airs Wednesdays at 10/9c on NBC.