Tonight begins the #OneChicago crossover event with a new Chicago Fire, as squad members gather at Chicago Med after one of their own is attacked, and Cruz works with the Chicago P.D. to find Freddie, who’s missing. Continue the story with a new Chicago Med (10/9c), where a member of Firehouse 51 clings to life and takes a sudden turn for the worse as medical staffers race to give treatment.
See an exclusive sneak peak below and tune in for the first part of the crossover event tonight on NBC at 9pm EST.[youtube https://www.youtube.com/watch?v=qxK6hjvzQlE]