The film is set during the First Indochina War (1946–1954), and depicts the relationship between a sergeant of the French Foreign Legion and the Eurasian wife whom he had abandoned
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