Hardened mercenaries Stan Mullens and Frank Giordano are fighting their way across the Congo jungle, having been sent to track down and kill a charismatic diamond miner, Tonde Chiora. But their victim is full of dangerous surprises, and the jungle offers more opportunities to die than to kill. Struggling to survive in the dark heart of the Congo, Stan begins to question his old loyalties — and his tenuous belief that he is still one of the good guys.