Follows the lives of the personnel of the fictional 21st District, which houses both uniformed officers and the department's elite Intelligence Unit as they fight every day to keep the city of Chicago, Illinois safe.
Follows a Los Angeles Police Department (LAPD) Special Weapons and Tactics (SWAT) team as they battle crime in Los Angeles, California.
Follows the Major Case Response Team (MCRT) from the Naval Criminal Investigative Service (NCIS), as they get to the bottom of criminal cases connected to Navy and Marine Corps personnel.
An ex-con assumes the identity of a murdered sheriff in the small town of Banshee, Pennsylvania, where he has some unfinished business.
Follows the inner workings of the New York field office criminal division of the Federal Bureau of Investigation (FBI), as they fight to keep New York City and the country safe.
Starting over isn't easy, especially for John Nolan who, after a life-altering incident, is pursuing his dream of joining the LAPD. As their oldest rookie, he's met with skepticism from those who see him as just a walking midlife crisis.
