Frank takes matters into his own hands to save Gormley's career when the officer is accused of using excessive force after decades-old complaints against him become public knowledge. Also, Danny and Baez learn to be allies when the transgender community comes under attack, Jamie and Eddie aim to settle a personal dispute with a local thug who likes to fight cops, and Erin is pressured to let a good samaritan off the hook for a violent act of vigilantism