Answer
Magnum Force, the answer to the question, is a 1973 American action film directed by Ted Post and starring Clint Eastwood as police officer Harry Callahan. It is the second installment in the Dirty Harry film series. In the film, Callahan investigates a series of murders committed by vigilantes targeting criminals who escaped justice through legal technicalities. David Soul co-stars as a police inspector collaborating with Callahan in the case.