When a supporter for the mayor elect is found dead, Frank is put on the spot when the mayor wants him to position it to the public as a random act of violence. Meanwhile, Jamie goes undercover at a bar and meets a suspicious patron.

Reagan, family generations are New York City law enforcement officers, is worthy of the name of the police family . Frank Reagan, is a New York City Police Station chief command of the police , in charge of the Reagan family . He tactfully strategically manage his department as well as family , even in dealing with the Mang parent unapologetic Henry when the Executive during troubled political issues . Has been married the eldest son Danny is his pride and care is a very experienced detective , he is a veteran of the Iraq war , sometimes with less tricky tactics to solve the case . Family, the only female member Erin is the New York District Court , District Attorney Assistant , has just become a single mother , she was her father and brothers for legal aid . Jamie is the smallest one of the Reagan home from Harvard Law School graduate, is the " golden boy" , however, he did not choose a very profitable future , but to follow the family tradition into a new police . He was sent to do the undercover agent , even his father did not know the matter , Jamie life changed dramatically , and also affected the family ...