A veteran of the Indochina war, a doctor emigrated to Kabylia. He is torn between his love for the sister of a rebel group and his duty as a patriot.

Phil Stone steals in North Africa, where he is with the fidanzara, a precious ring, because he needs money in order to return to the United States, but is arrested, sentenced to a harsh punishment. An agreement with the prison director who promises freedom in exchange for the discovery of the treasure of Cleopatra that should be buried in the vicinity ...