After seven seasons, this drama series about the life of a flawed NYC firefighter, played by Denis Leary, is coming to a close. The series premiered in 2004 and featured the events of 9/11 heavily in its storyline. Leary's character, Tommy Gavin, lost his cousin and best friend (a fellow firefighter) in the World Trade Center disaster. Leary has said that the series' conclusion, coming just days before the tragedy's 10th anniversary, was a "natural time totem."
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