When Detective Inspector Jaye Hamilton stops at an Auckland liquor store for a bottle of champagne, it is supposed to be his daughter Addison has just gotten engaged. Instead, he is suddenly gunned down at the register by a balaclava-clad assailant in what appears at first to be a random act. The getaway car is quickly recovered, containing the cell phone of a young Māori man, Toa Davis, who is immediately the object of an all-out police search.
Jaye’s ex-wife, former Māori detective Hana Westerman, asks in on the investigation. Her instincts suggest that the vehicle was meant to be found, and that Jaye had been targeted. The gun used in the assault is distinctive, and she learns that a local gang leader, Erwin Rendall—who had threatened Hana in the past—owns such a weapon. When Davis turns up dead, the hunt for Rendall is on. Yet when Rendall slips through the dragnet and escapes the country, and in the wake of Jaye’s death, Hana decides to rejoin the force, acknowledging that she has unfinished business still.