After Anthony is shot while interviewing a witness for an upcoming murder trial, Erin enlists Anthony's archenemy, Danny, to find out who was responsible. Also, Jamie and Eddie get in the middle of a standoff between a police lieutenant and a developmentally disabled man posing as an officer, and Nicky prepares to take the police exam.

When a student is shot by a rival gang member in his high school courtyard, Danny and Baez try to get a grasp on the situation to prevent a reoccurrence, but the principal, Darryl Ward, recklessly takes matters into his own hands. Also, Erin tries to help her friend, Mickey, who is mixed up in an illegal gambling ring, and Governor Mendez tries to frame Frank after one of his top legislative aides is shot by an NYPD officer