Dick Wolf’s “Chicago” lineup is getting even bigger. NBC has greenlit “Chicago Justice,” the legal drama, which marks the fourth installment of the franchise, Variety has learned.

The official pickup comes after the “Chicago Justice” characters debuted on “Chicago P.D.” last night, reflecting in a slight ratings uptick.

“Chicago Justice” stars Philip Winchester, Carl Weathers, Nazneen Contractor, Joelle Carter and Ryan-James Hatanaka.

The series will follow the State’s Attorney’s dedicated team of prosecutors and investigators who navigate heated city politics and controversy head-on while fearlessly pursuing justice. As they take on the city’s high stakes and often media-frenzied cases, they must balance public opinion, power struggles within the system and their unwavering passion for the law. It all starts with a gut-wrenching case when one of Chicago’s finest is shot in the line of duty.

Variety was first to report that “Chicago Justice” was put into development. Back in January, NBC’s Entertainment president Jennifer Salke told us, “We could plant the seeds for some characters who could live within the world of ‘P.D.’” The project became official about one week later.

“Chicago Fire” was the first of the mega-franchise, premiering in 2012. “Chicago P.D.,” now in its third season, was the second to follow, and this past fall, “Chicago Med” became the third.

While NBC is contemplating its 2016-2017 slate, another spinoff remains in contention: “The Blacklist” follow-up, starring Famke Janssen, which airs its backdoor pilot tonight.

Wolf will exec produce “Chicago Justice,” along with Peter Jankowski, Matt Olmstead, Derek Haas, Michael Brandt and Arthur ‎Forney. Universal Television and Wolf Entertainment are behind the series.