Chicago Fire is an American drama series chronicling the work of the Chicago Fire Department created by Law & Order Executive Producer Dick Wolf (though it is not part of the L&O franchise). It is currently running for three seasons on the NBC network from 2012 onwards.
Law & Order: Special Victims Unit has produced two crossover three-parters with Chicago Fire and it's spin-off show Chicago P.D.. A case would begin with Chicago Fire in Chicago for Part One, before either moving the action to New York for Part Two and back to Chicago for Part Three or continue the action from Chicago in Part Two and move the action to New York in Part Three.
- Firehouse 51 rescue the owner of a burning house and find him clutching a suspicious box that leads Severide to call in the Chicago Intelligence Unit, who track a child pornography victim to New York and return to Chicago with SVU to take down a pedophile ring.
- An apartment fire in Chicago connected to a case of rape and attempted murder resembles an unsolved case in New York that brings SVU and Intelligence together to catch the culprit.