When two cops working the projects make the life-or-death decision to rush an injured child to the hospital without waiting for an ambulance, Frank winds up defending them against accusations they aggravated the child's injuries.
When two off-duty cops are involved in a shooting outside a gym, Frank quickly turns from protecting them from I.A. to investigating them for wrongdoing himself. He soon discovers the two cops are dealing steroids.
When an officer is killed in a roadside ambush, his emotionally shattered partner is accused of incompetence after giving a statement while he is still in shock. Frank must protect the officer, even if it means changing the rules of how officers are questioned after a shooting.
When an undercover operation goes wrong, I.A. suspects a leak, and targets a female cop with family connections to a street gang. Frank, however, doesn't believe she's guilty, and backs her when no one else will.
When an undercover operation goes wrong, I.A. suspects a leak, and targets a female cop with family connections to a street gang. Frank, however, doesn't believe she's guilty, and backs her when no one else will. At the same time, Billy's spiraling drug addiction goes unnoticed. Eventually, Frank turns I.A.'s investigation back on itself, and realizes the leak may be much higher placed in the department than anyone suspects.
As a wounded Billy barely hangs on to life, Frank and his team find themselves mysteriously under siege by a team of faceless attackers. Frank quickly sets up a war room at Rabbi's bar to keep his friends safe, and devise a plan to strike back.