Erin's ex-husband comes back to town and ends up being opposing council in court on Blue Bloods. "Old Wounds" is the third episode of the show's third season.
Frank is faced with a conflict that involves the badge number of his deceased son, Joe on Blue Bloods. "Cursed" is the 12th episode of the show's sixth season.
Erin tries to help a community activist who faces being deported on Blue Bloods. "For the Community" is the fifth episode of the show's seventh season.
Erin and Danny argue when she must release a suspect due to lack of evidence on the season premiere of Blue Bloods. "Unwritten Rules" is the first episode of the show's fourth season.
