Arms dealer Yolaf Peterson aims to make a sale to guerilla Mongo, but the money is locked in a bank safe, the combination known only to Professor Xantos, a prisoner of the Americans. Yolaf agrees to free Xantos, accompanied by … Franco Nero, Tomas Milian, Jack Palance, Fernando Rey, Iris Berben, José Bódalo, Karin Schubert Added on Amazon Prime 2021-12-18. Youtube Trailer