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.

At the end of the Civil War, a Union soldier is released from prison and travels with a fellow prisoner to Missouri where his travelling companion is shot and hung for horse stealing. California decides to take the dead companion’s belongings to his family’s ranch, where he falls in love with his friend’s sister. But then the “ghosts” of the war return in an unexpected way haunting him again.