The streets of San Francisco have become unsafe, a dangerous maniac named Scorpion has appeared in the city, demanding from the mayor a ransom of one hundred thousand dollars. Scorpion chooses his victims randomly and kills them from a safe distance with a sniper rifle, so catching a psychopath is extremely difficult. But if Inspector Harry Callahan has taken up his search, rest assured that no matter what it costs him, he will get the scoundrel even from under the ground.