After a long hiatus, the three shows of One Chicago are returning to NBC’s Wednesday night lineup in the 2024 TV schedule . In the Season 10 premiere, Chicago Med has a big cliffhanger to resolve after Season 9 ended with Dr. Mitch Ripley accused of assaulting Liliana’s sketchy brother, and at least one character won’t be back for it .

The biggest change for Season 10 happened behind the scenes, however, with Allen MacDonald taking over as showrunner after previous co-showrunners Andrew Schneider and Diane Frolov left the series. The new boss spoke with CinemaBlend about preparing for the top job as well as resolving the cliffhanger ASAP. Allen MacDonald comes to Chicago Med with plenty of TV experience as executive producer on shows like CSI and 13 Reasons Why , but he’s a newcomer to One Chicago.

So, how does one prepare to step into the role as showrunner for a series already nine full seasons and nearly 200 episodes in? I asked MacDonald that very question, and he shared: First and foremost, you sit down and you watch 176 episodes. That's where you start, and you immerse yourself in the world and the characters, just soaking it up as much as you can. And then on the other end of that, I had to sit down and figure out what my version of the show was going to be this season, and I basically felt that this show has always been a beautifully written show that was very emotional, and I wanted to build on that very successful foundation moving forward and just do my ver.