Trouble finds former SAS Warrant Officer Joe Gardner in the shape of a phone call from and old friend. Ex-Regiment legend John Bald is trapped in a bullet-ridden favela in Rio de Janeiro and a violent gang is out to kill him. Unless Gardner helps, Bald is a dead man. What begins as a simple rescue mission soon descends into a desperate struggle for survival. Stalked by elusive MI6 agents and ruthless ex-Blades, Gardner must draw on all his training and instincts to hunt down the hardest target of all – before disaster strikes.