'Chicago Fire' given full 24 episode order

An NBC freshman drama set in the Windy City now has a full two dozen episodes.

“Chicago Fire” received one more hour after getting one last week.

The drama about Chicago fire fighters and paramedics started slow, but its ratings surged in January., with its three biggest overall audiences and three of its four highest ratings in adults 18-49 years old.

The show has bested its 1.9 premiere demo rating four times, and the premiere’s viewership of 6.6 million six times. The Jan. 2 episode was 2.4/ 7 in 18-49 viewers with 8.5 million viewers overall in live+ same day ratings, which were new highs for the show.

Taylor Kinney (“The Vampire Diaries”), Jesse Spencer(“House M.D.”), Charlie Barnett, Monica Raymund, Lauren German, Eamonn Walker, David Eigenberg and Teri Reeves star in “Chicago Fire.”

Conversely, NBC’s new midseason drama “Do No Harm” and the second season premiere of “Smash” were disappointing for the Peacock Network.

Dick Wolf (“Law and Order”), Danielle Gelber, Michael Brant, Derek Haas, Matt Olmstead and Peter Jankowski executive produce the drama.

The show made headlines in December, when Chicago’s WGN News reported a crash, “in the middle of the road,” on the south side of Chicago. They didn’t know it was being filmed for the freshman drama.

“Chicago Fire” airs Wednesday at 10 ET.