Sergeant Brock and Goldie are American
Korean War veterans now serving as
French Foreign Legion mercenaries in the
First Indochina War. Brock's wife is a "half caste" Chinese-European named "Lucky Legs" who resorts to smuggling to feed her five-year-old son she had with Brock. Brock abandoned her and the baby when he was born with Asian features, feeling a "half breed" would not be welcome in America; an attitude towards
miscegenation prevalent at the time. Lucky is recruited by the French high command to use her expertise of the area and her connection to the communist Major Cham to get a demolition squad of Legionnaires led by Brock to a vital hidden
Viet Minh ammunition dump on the border with
Red China. In return for her services, Lucky is promised by the French that they will arrange for her five-year-old son's emigration to America. The raid is filled with animosity between the former lovers, booby traps, and enemy patrols. On arrival at the ammunition dump hidden in a mountain, Lucky discovers the commanding officer is her former friend, Major Cham, who wants to take her and her son to a new life in
Moscow. Cham is a high flyer corporate executive (in the manner of Fuller's gangsters in
Underworld U.S.A.) marked for great things in the world of international
communism. The sabotage mission is successful but at great cost, as Lucky dies blowing up the dump. Brock reconciles with his child and is last seen walking along holding his hand in preparation for returning to America, as Goldie reprises the title song. ==Cast==