Blue Bloods follows the lives of the multi-generational Reagan family and their dedication to the New York City Police Department. Frank (Tom Selleck), is the Police Commissioner and son of former Police Commissioner Henry Reagan (Len Cariou). He must balance his duties of running the largest police force in the world and being his kids’ boss. His daughter Erin (Bridget Moynahan) is an Assistant District Attorney, son Danny (Donnie Wahlberg) is a senior detective and fellow Marine Veteran, and new Harvard Law grad turned cop, Jamie (Will Estes) all swirl through this family drama and passionately defend their city from harm. The Irish-American family is deeply rooted in their patriotism, passion, and love of family.