The action of this series revolves around a group of professional firefighters of the 62nd Brigade in a New York following the events of September 11th. Tommy Gavin allowed the pressures of his job to destroy his family life, separating him from his wife, Janet, and their three children. Even more disturbing is the fact that Tommy is constantly haunted by the ghosts of his colleagues who died in the line of duty and often has conversations with his dead cousin, firefighter Jimmy Keefe.