In the clip above, behind-the-scenes photos show One Chicago actors looking happy as they hang out with stars from the other series, but their characters likely won't have many reasons to smile ...

T he recent One Chicago crossover has left fans with their hearts in their throats, especially concerning the fate of Trudy ...

Uh-oh, what’s going on with one of our favorite — and most ... Our clip offers a look at the scene after the gas explosion. Chicago PD arrives on scene, and Platt immediately approaches ...

The One Chicago crossover was a dramatic ... The episode began with Chicago Fire, as Firehouse 51 was called to the scene after a gas explosion. Chief Battalion Officer Pascal (Dermot Mulroney ...

NBC’s Chicago Fire has kept fans engrossed with its adrenaline-filled storylines for 12 seasons and counting. From rescue missions to romance, the show manages to cover all kinds of drama.