The Chicago Fire Season 12 premiere is somewhat overshadowed by everything that's happened off-screen. The NBC drama dealt with the absence of actor Taylor Kinney while he attended to personal matters, while between seasons it was announced that two more stars would be leaving the series permanently. Plus, the entertainment industry strikes resulted in an extended hiatus for most of television. As such, when One Chicago fans tune into Season 12, they're thinking as much about behind the scenes as they are the on-screen cliffhangers.
Source：https://www.cbr.com/chicago-fire-season-12-premiere-review/
