Bingeing the three One Chicago series may sound fun, but first, you must find where you can stream them. According to Cinema Blend, the new-ish streaming service called Peacock currently hosts every season of "Chicago Fire," "Chicago P.D.," and "Chicago Med." These seasons can be viewed for free; however, if you pay for a premium Peacock subscription, you can watch new episodes soon after they air on cable. Still, the question remains: Which series should you start first?

Well, according to Cine Dope, you should probably watch them order because of their crossovers. If you start a series that didn't begin until several years after another series, you may miss things when you encounter your first crossover. If you want to watch in their release order, you should start with 2012's "Chicago Fire" before moving on to 2014's "Chicago P.D." and 2015's "Chicago Med." Moreover, there's a one-season series titled "Chicago Justice" that aired in 2017 but was canceled due to poor performance and reception. Still, it's connected to the rest of the universe.

If you want to watch in order, pay attention to the release dates of each season as you're watching them. Once you reach the 2014 season of "Chicago Fire," for example, you should start "Chicago P.D." since it premiered that year. If you can track yourself this way, you'll watch the franchise in the perfect order. Or, if you're fine with watching things a little out of order, this universe can be a big choose-your-own-adventure game!