Walter Calvert calls upon his brother Henry at his eerie old house.

In this western, a young cowboy rides out to avenge his father’s killer. Eventually, he finds the scoundrel, but by this time opts not to kill him for the cowboy…

Claire Forrest seeks her kidnapped scientist father, hidden somewhere on Mystery Island. He is held and forced to work on diabolical inventions by Captain Mephisto, a costumed villain.

Jerry Blake (aka Federal Operator 99) teams-up with Joyce Kingston to thwart the plans of escaped crime boss Jim Belmont.