In a run-down South American town, four men are paid to drive trucks loaded with nitroglycerin into the jungle through to the oil field. Friendships are tested and rivalries develop as they embark upon the perilous journey.

• Compagnie Industrielle et Commerciale Cinématographique
• Véra Films
• Yves Montand
• Charles Vanel
• Peter van Eyck
• Folco Lulli
• Véra Clouzot
• Antonio Centa
• Jo Dest
• Darío Moreno