NYPD Detective Danny Reagan takes a job with the Boston PD and is paired with Detective Lena Silver, part of a law enforcement family comprised of District Attorney Mae Silver, Police Superintendent Sarah Silver, rookie cop Jonah Silver and Rev. Edwin Peters. Reagan hopes to reconnect with his son, Sean, in Boston.

Donnie Wahlbergas Det. Danny Reagan
Sonequa Martin-Greenas Det. Lena Silver
Ernie Hudsonas Rev. Edwin Peters
Maggie Lawsonas Supt. Sarah Silver
Gloria Reubenas DA Mae Silver
Marcus Scribneras Ofc. Jonah Silver
Mika Amonsenas Ofc. Sean Reagan
Emily Mitchellas Katie Larson
Bridget Moynahanas Erin Reagan
Marisa Ramirezas Maria Baez
Pam Veasey
Rebecca Perry Cutter