In this action film, a courageous test pilot works with experimental aircraft for the US Armed Forces. When an important airplane manufacturer dies, his daughter is left to run the company. The company seems to be producing dangerous prototypes, so the woman decides to close the company.

A diver saves his best friend's life but loses his own arm in doing so. Later, unable to find work because of his missing arm, he is forced to go to work for a criminal searching for lost treasures. Meanwhile his friend, who has since become a policeman, finds himself assigned to break up the crook's operation and bring in his gang--including the man who saved his life.