About Blue Bloods Season 2, Episode 1 : Mercy

The husband of the close friend of Erin was found dead inside his car who is one of the supporters of the Mayor Elect. Frank was pressured by the Mayor to play the case as it is a random act of violence. Elsewhere, Jamie goes on his first undercover assignment. Guest Stars: Nicholas Turturro, Abigail Hawk, Andrew Terraciano, Tony Terraciano, David Ramsey, Tony Bennett, Carrie Underwood, Kelli O'Hara, Steve Cirbus, Eric William Morris, Valentina de Angelis, Kurt McKinney, Billy Griffith, Cassidy Gifford, Grant Rosenmeyer, Mike Houston,