Blue Bloods S07 E04 Mob Rules

"Honor. Justice. Family. It’s in their blood."

Intent on bringing justice to Lieutenant Gormley after he is beaten by a mob outside his home, Danny and Frank enlist the aid of Detective Abetemarco, who has a personal connection to the neighborhood where the attack occurred. Eddie and Jamie witness a dishonest arrest. Danny searches for a witness to testify against a dangerous gang leader.