In this exclusive sneak peek, Olinsky begs Chief Boden (Eamonn Walker) to send his guys back into the blaze to rescue his daughter Lexi. It's a risky call, but Severide (Taylor Kinney) and Casey (Jesse Spencer) are more than willing to put their lives on the line in the hopes of saving a few more people.
It's a rare moment of emotion from the typically stoic Olinsky, who had a heart-to-heart moment with Lexi in the most recent episode of Chicago P.D., after bonding with a murder-for-hire suspect who was looking to avenge his own daughter's death. Check out the clip to see how Boden responds.
The three-hour Chicago crossover airs Wednesday with Chicago Fire at 8/7c, Chicago P.D. at 9/8c and Chicago Justice at 10/9c on NBC.