'Chicago P.D.' Sets 'Chicago Fire' Crossover for 100th Episode

Chicago Med S01E05 still - H 2015
Elizabeth Sisson/NBC

Chicago Med S01E05 still - H 2015

Chicago P.D. is celebrating its 100th episode in true Dick Wolf style.

The NBC cop drama will kick off a crossover with Chicago Fire for its milestone episode. The crossover will then conclude the following night on Chicago Fire. (P.D. airs Wednesdays at 10 p.m., while Fire airs Thursdays at 10 p.m.)

The cast of Chicago Med, which returns for its third season on Tuesday, Nov. 21, will also appear in the two-parter.

While castmembers from the three Windy City-set series regularly cross-pollinate, this marks the first major crossover between the hourlong dramas since the three-hour March 1 crossover between Chicago Fire, Chicago P.D. and Chicago Justice that was used to launch the latter. However, the latter was not renewed for a second season.

Also making things tricky was Chicago Fire's move to Thursdays at 10 p.m. this season after NBC opted not to move This Is Us to Thursdays after all. "The other thing is we're in new spots this year in terms of how that storytelling would flow. Fire's a great way to kick off a crossover because naturally you go from a big accident to the hospital to the police figuring it out, which has served us well in the past," Fire showrunner Derek Haas told THR in August. "This time, we would be the Thursday night show so unless we can manipulate the schedule — which we've done in the past — to put Fire first, we'd have to get into the nuts and bolts of how to do that."

In addition to crossovers with the other Chicago series, P.D. has also crossed over several times with Dick Wolf's long-running New York-based cop drama Law & Order: SVU. Former SVU showrunner Rick Eid took over as showrunner of P.D. earlier this year after the exit of Matt Olmstead.

There is no date yet for the crossover. However, P.D. is expected to hit its 100th episode sometime early next year.