What went down on the Chicago Fire Season 4 finale?
A whole lot of suspense, that's what.
To be more specific, Chicago Fire Season 4 Episode 23 found Boden and Jimmy very much at odds, while Kidd dealt with her unstable ex.
Also during this intense hour of television, Dawson continued on her quest to foster Louie and Casey's new political consultant urged him to think big.
Finally, as you'll see when you use the above video to watch Chicago Fire online, the team responded to a dangerous structure inferno.
Click PLAY to learn what sort of cliffhanger the series went off on for the summer.