Dirty Harry: A rooftop sniper named Scorpio has killed twice. Streetwise San Francisco police detective Harry Callahan will nail the perp one way or another-- no matter what "the system" prescribes. Magnum force: Harry Callahan goes up against rookie motorcycle cops gone vigilante. Enforcer: Detective Harry Callahan has a new partner, Inspector Kate Moore, who has two jobs: tracking down a band of armed-and-wacko terrorists and winning Harry's confidence. Sudden...