is an American television drama on NBC spun off from Chicago Fire.
The series focuses on a uniformed police patrol and the Intelligence Unit that pursues the perpetrators of the city's high-profile major street offenses.
Voight and the Intelligence unit continue to investigate the gas explosion at a high rise with the Chicago fire department.
Meanwhile, Platt continues to fight for her life in the ICU after being shot by one of the offenders.
Also, Ruzek and Stella Kidd continue to find a way to be rescued from being trapped in a subway car underground.