One woman's fight for freedom. One team's mission to deliver justice.

When a ruthless crime syndicate kidnaps and enslaves beautiful young women, one victim fights back. She manages to enlist the help of PRIMAL, a covert vigilante team that operates where governments fear to tread.

With cutting-edge technology and razor-sharp combat skills, PRIMAL lays siege to a medieval-era castle, the syndicate's fortress of cruelty. As the notorious Yakuza close in, PRIMAL must confront not only the criminal underworld but also content with one operative's personal vendetta. His need threatens to jeopardize the lives of the entire unit and the prisoners they've sworn to protect.

In this gripping military thriller, Silkstone explores the depths of human resilience and the lengths one will go to fight for the oppressed.

PRIMAL Fury is the fourth instalment in the gripping, pulse-pounding PRIMAL Series with page turning action for fans of Bard Thor and Tom Clancy.

But as the team navigates the treacherous mission, one operative's personal vendetta threatens to jeopardize the lives of the entire unit and the prisoners they've sworn to protect.