The Enforcer plot
"The dirtiest Harry of them all."
Detective Harry Callahan, newly rehabilitated in the Homicide Division after being reprimanded for using unorthodox methods in a robbery case, finds himself forced to work with Agent Kate Moore. A number of murders are linked to a terrorist gang led by Bobby Maxwell. They receive via a tape recording a demand from an organization 'The Peoples Revolutionary Strike Force' to pay 1 million dollars to preserve the total destruction of the city. Callahan agrees with Big Ed Mustapha, leader of a group of militant blacks, that the latter will inquire about Maxwell.