A Latin American country on the Pacific seaboard. A coup d'état fails. Jacques and his fellow mercenaries must get out of there as fast as they can. He takes with him Monica, a beautiful prostitute with a taste for adventure. Having cheated their shady paymasters out of some valuable paintings, their only possible means of escape is by hijacking a bus, fleeing across desert and jungle, and rafting down the river to the Atlantic. Nature is hostile, but much wilder opponents await them!

En Amérique du Sud, un coup d'État se prépare. À la suite de quoi, un couple de mercenaires doit au plus vite quitter le territoire.