Magnum Force

Mobster Carmine Ricca drives away from court in his limousine after being acquitted of a mass murder on a legal technicality. While traveling on an isolated road, the driver is pulled over by an SFPD motorcycle cop, who calmly guns down all four men in the car. Inspector Harry Callahan visits the crime scene alongside his new partner, Earlington "Early" Smith, despite the fact that the two of them are supposed to be on stakeout duty. Callahan trades barbs with their superior, Lieutenant Neil Briggs, who seems eager to keep him out of the murder investigation.