Blue Bloods is an American police procedural television series created by Robin Green and Mitchell Burgess. It premiered on September 24, 2010 on CBS. The series centers on the Reagans, a family of police officers in New York City. Frank Reagan (Tom Selleck) is the police commissioner with three grown children working in law enforcement: the oldest, Danny (Donnie Wahlberg), a pragmatic detective; Erin (Bridget Moynahan), an assistant district attorney who prosecutes many of the offenders Danny apprehends; and Jamie (Will Estes), a Harvard Law School graduate and a patrol cop in the NYPD. Frank's second son, Joseph, an NYPD detective, was killed in the line of duty while investigating a group of dirty cops nicknamed "The Blue Templar". On March 25, 2016, the series was renewed for a seventh season, premiered on September 23, 2016.
As of April 14, 2017[update], 153 episodes of Blue Bloods have aired, currently airing its seventh season. On March 23, 2017, CBS renewed the series for an eighth season.