Cannon becomes a hunted man when a young South Korean man comes after him seeking revenge for his late father who was a tortured prisoner of war during the Korean War-and he believes Cannon is solely responsible for it.
Cannon investigates the death of a scientist who designed a computer that searches for extra terrestrial signals. But was he murdered by an entity from outer space or by a fellow scientist with something to hide?
A mobster hires Cannon to find out who tried to kill his ex-wife in a failed hit attempt. But Cannon suspects the mobster himself may be the actual target after another attempt is made on him and not his ex-wife.
An Army officer showing signs of a deep psychosis is on the loose with an M-16 rifle somewhere on base. His wife calls Frank Cannon in to investigate and to help bring him in before the Army is forced to kill him.