Denis Leary is "Tommy Gavin." Tommy has come to terms with his involvement in his nephew's accident, but Damian's haunting presence is a constant reminder that one false move could be Tommy's last. With a dry spell at the firehouse and things running like clockwork without him at home, Tommy jumps at the opportunity to spend time with a vibrant old friend. But after a devastating five-alarm fire, Tommy decides that he's ready for a change of pace in his life.