TV show crossovers are exciting. They can range from a character within a universe popping in for a cameo to two completely unconnected

shows merging for a special episode. And there’s no denying they’re always fun to see. From live-action to cartoons, or sometimes even

both, when these series create a rupture between worlds, it’s exciting to see what the characters will do.

 

 

Aside from the odd random episode making a special edition, there are other TV shows out there that have multiple series within an affiliated franchise, and Dick Wolf‘s One Chicago is one of his most recognized. Consisting of Chicago Fire, Chicago P.D., and Chicago Med, this trio is renowned for interconnecting, even crossing over with Wolf’s other extensive procedural universe, Law and Order. Since 2013, it has become a tradition to have them merge at least once a year in some way or another. Chocked-full of drama and nail-biting anticipation, fans are always curious to see where the latest will lead. And some of these episodes sit among the best of the shows.

 

 

When a new fellow police procedural within Dick Wolf’s universe came in 2014, it didn’t take long for worlds to connect when Chicago P.D. and Law and Order: SVU merged for their first crossover. The New York and Chicago teams come together to catch a serial rapist and murderer and see Erin Lindsey (Sophia Bush) enlist the help of two SVU members.

Fans were thrilled at the idea of Wolf’s shows crossing over, no matter the case they were working on. So when SVU favorites, Amanda Rollins (Kelli Giddish) and Odafin Tutuola (Ice-T) flew into the Windy City to help the Intelligence Unit catch the man behind the attacks, it made for some exciting and rather intense scenes throughout the episode’s entirety.

“A Dark Day” is considered one of the best episodes of Chicago Fire. According to IMDb, it’s the second highest-rated episode out of the show’s impressive 240-plus total and is the first part in this two-way crossover from 2014. It sees multiple detectives from the Intelligence Unit assisting the members of Firehouse 51 when an explosion rocks a hospital.

It’s discovered that a bomb is responsible for the blast, leading to the storyline flowing into P.D.‘s “8:30 PM” so that the Intelligence Unit’s detectives can find the people responsible. Dozens of injuries and fatalities motivate the team in one of the most harrowing crossovers to date. Its emotionally draining aspects make this one of the most heartbreaking of all.

In one of the earliest Law and Order crossovers, and the first to feature a three-parter with the team from the Special Victims Unit. 2014s “Nobody Touches Anything,” “Chicago Crossover,” and “They’ll Have to Go Through Me” see the Chicago firefighters and Intelligence Unit teaming up with SVU‘s New York detectives to take down a child pornography ring.

Uncovered by Fire, in the first part, when they rescue a man with questionable photos in his possession, the episodes take audiences along for the ride with the edge-of-your-seat action to bring the monsters responsible for the awful crimes down and stop them once and for all. With multiple lives at stake, this early One Chicago/Law and Order crossover had viewers gripped from the start.

Leslie Shay’s (Lauren German) death came as a shocking blow to fans. She has been a favorite character of Chicago Fire since its beginning in 2012, instantly gripping viewers’ hearts with her sarcasm, loyalty, and lovable nature. When season two’s explosive cliffhanger left multiple lives on the line, their fate was unknown until the series returned for its third season months later. But nobody saw this coming.

2015’s two-part crossover between Fire’s “Three Bells” and P.D.’s “A Little Devil Complex” saw new information surrounding her death come to light. Revealed to be arson, Firehouse 51 brings in Antonio Dawson (Jon Seda), Kim Burgess (Marina Squerciati), and Sean Roman (Brian Geraghty) to assist in the investigation, adamant about finding justice for their fallen colleague.