Ellie Andrews has just tied the knot with society aviator King Westley when she is whisked away to her father's yacht and out of King's clutches. Ellie jumps ship and eventually winds up on a bus headed back to her husband. Reluctantly she must accept the help of out-of- work reporter Peter Warne. Actually, Warne doesn't give her any choice: either she sticks with him until he gets her back to her husband, or he'll blow the whistle on Ellie to her father. Either way, Peter gets what (he thinks!) he wants .... a really juicy newspaper story.

Picking up three years after the events in Magnum Force, a threatening terrorist group called, The People's Revolutionary Strike Force declare war to the city of San Francisco and demand a ransom to be paid, otherwise they plan to blow the city apart. While Inspector 'Dirty' Harry Callahan is at a limbo following his unorthodox method during a robbery, he's at it to dispatch the terrorist group, by playing their game by being more dirty than ever. But this time, he's got a new partner, which might prove the task to be somewhat more difficult than ever, unless the two can work together.

Ethan Tell is a small time crook who makes a big-time score when he steals 1 million dollars. Ironically, his life radically changes for the worse when he discovers that stealing the money was the easy part and he now must keep his partner, his wife, his parole officer, and two corrupt detectives from stealing it from him.

When the Universe decides what it wants, it's pointless to resist. With his family's life at stake, Joseph Steadman finds himself the unwilling test subject of a maniacal scientist in a battle that could save the world, or destroy it.