Inspector Wright becomes personally involved in a case when a young woman is found raped and murdered after getting into a taxi. The suspect is the same man who had previously walked on a similar charge, and now Wright sees an opportunity to put the man away for a long time. Meanwhile, Malik works to find the gang responsible for the armed robbery.

Detective Sonny Koa is enlisted to help the son of a friend, Sam, who's involved with Maori gangsters. When the kid is implicated in a violent robbery, Sonny must walk a fine line between his obligations as a cop and his obligations to his community. Meanwhile, Malik is focused on nailing the armed robbery gang. He has a suspect in custody who knows the truth, but he refuses to talk.

Malik hopes that a visiting Afghan cop can provide some answers to the mystery of the armored car robbery and its connection to a massacre of civilians in Kandahar. But the visitor is killed before Malik can talk to him, and Detective Travis is behaving erratically. Detective Lim undertakes her own investigation to discover what he's trying to hide from her and the rest of the Major Crime team.