Rain is lured out of self-imposed exile in Brazil, where he had hoped to find shelter from the killing business, when his old employer, the CIA, dangles $200,000 his way for the elimination of an Arab arms supplier known only as Belghazi. Rain takes the job, promising himself it will be his last, and travels to Macao, a Portuguese peninsula and islands off the coast of China, to begin tracking Belghazi. But Rain, a meticulous hit man equipped with all the latest gadgetry, hardly hits town before he discovers that not only is another assassin stalking Belghazi but somebody is stalking Rain himself.