Based on the true story of three Christian prisoners who face execution in a third world country and how their joy in Christ results in a stunning conclusion.

Ollie is in love with a woman. When he discovers that she is already married, he tries to kill himself. Of course, the suicide is avoided and the boys join the Foreign Legion to get away from their troubles. Finally, they are arrested for trying to desert the Legion and to escape the firing squad by stealing a plane.

Yul Brynner plays political leader Sharif who is sprung from a police van on his way to a firing squad by young loyalists led by Sal Mineo. Yul and the other prisoners kidnap an ambulance and head into the Arabian desert with the police in hot pursuit. All the performances are magnificent: Sal Mineo showing his acting talents, Jack Warden in a wiseguy performance as an employee of Zahrain oil who was involved in embezzlement, Anthony Caruso as a slimy psychotic and the underrated Madlyn Rhue as a nurse who becomes emotionally involved in the proceedings.

Terrorists from all countries are to be reunited in order to join forces against their governments. The USA army notice it. A group of assassins, waiting in jail to be executed by firing squad get the chance to be exonerated if they participate in the secret mission of killing the terrorists. But they have to train under the strict military style of Sergeant Ransom.