Allan Oberholzer

Col. Cooper leads a group of American P.O.W.s, battling their way to freedom as Saigon falls to the Viet Cong.

An assassin called Filthy Harry is hired by a shady figure and charged with killing the heroes. The men are framed twice for different robberies by King Kong's new girlfriend, nearly committed to a mental hospital by their devious boss, and forced to battle Filthy Harry's weaponry-laden robot while covered with time bombs.

Outback pilot Jim Hawk investigates the murder of his brother, who had been involved in diamond mining in Queensland. He uncovers a plan to flood the market with diamonds.