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 reluctant guerilla Basco, but a former business partner of Yolaf's- John 'The Wooden Hand', has other ideas.
Franco Nero
as Yodlaf Peterson
Tomas Milian
as El Vasco
Jack Palance
as John
Fernando Rey
as Prof. Xantos
Iris Berben
as Lola
José Bódalo
as General Mongo Alvarez
Karin Schubert
as Zaire Harris
Eduardo Fajardo
as Colonel
Gino Pernice
as Tourneur
Tito García
as Tiger
Gérard Tichy
as Lieutenant
Lorenzo Robledo
as Captain Jim