He's determined to prove his innocence since he was framed by Fox, the current Sheriff of Clay's former home of Mesa Encantada.
Instead, Fox now runs a protection racket, extorting and terrorizing the complacent citizens, threatening them with violence if they do not pay exorbitant taxes to him.
Realizing he is unable to see clearly, Fox seeks him out in one of the town's stables and tries to lure him into shooting his own daughter, Nancy during the final showdown.
In an epilogue in only European prints of the film, the military guards from Drunner Labor Camp pay Jonathan a large sum of money for getting rid of Fox and Oritz.
The bulk of the story takes place either in or outside the saloon or in/outside Jonathan's farmhouse, both of which were shot at the studios of Elios Film near Rome.
[4] Lucas critiqued the rest of the dubbing as "fairly atrocious", noting that Diana Martin's performance suffered particularly.