Harlee and Wozniak, still dealing with the fallout from their near death experiences, discover a grisly crime scene riddled with mystery.
Dealing with a loss, Harlee pursues evidence of a higher level of corruption within the NYPD. Wozniak tries to protect Harlee and his crew from escalating threats.
Matt tells Harlee that Miguel's case is up for retrial, but he will cover for her. After the FBI establishes that they do not have a leak, they demand results from Harlee or will arrest her. Matt finds out that Harlee was going through his office and decides to kill her to protect himself and his lover Donnie. Meanwhile, Tess moves a dead body out of her backyard and asks her colleagues for help. Harlee solves the case and presents it to Robert but he wants Matt. Harlee is on a dinner date with
Harlee focuses her sights on taking down the intelligence unit. Stahl’s continued obsession brings him closer to New York. Wozniak uses Wallace as Espada struggles with keeping secrets from Tufo.
Harlee discovers that the intelligence unit’s involvement in criminal enterprises goes deeper than she thought. Ramsey strikes back. Tufo pulls away from the crew. Loman meets a girl.
Harlee and Wozniak try to link the intelligence unit to the cartel while facing the consequences of breaking the blue wall.
Harlee fights a frame job as Wozniak tries to keep Bennett behind bars.
Wozniak enlists the crew to make a dangerous move against the Intelligence unit as Harlee struggles to stay on her new path.
Harlee uncovers a betrayal. Cole tries to avoid Ramsey’s reach. Wozniak attempts to negotiate with the intelligence unit.
Harlee faces a police commission as Wozniak and the crew scramble to help her from the outside.