This is a secuel to "The Phantom Stagecoach" of the Zorro Escarlata (Scarlet Fox) movie serials, this time Sacrlet Fox battles a huge monster created by evil science and black magic,and in the pure style of Gene Autry's The Phantom Empire,mixes,horror,sci-fi, and singing cowboys (in this case singing charros) to create one of the most bizarre and intresting combos of the 50s in mexican movies