A bestselling author accepts an invitation to the "Mystery Ranch," only to find laid back shenanigans giving way to real danger in this action-packed western starring Tom Tyler. When it comes to the western, no one writes them like Robert Morris. A successful author whose fans suspect that he knows nothing about "real" cowboys, Robert is invited to the "Mystery Ranch" and senses the makings of a new bestseller. When Robert arrives at the ranch with his secretary Percy Jenkins, the real fun begins. Subjected to a series of harmless yet startling pranks designed to test his mettle, Robert and Percy attempt to one-up the ranchers by cooking up a little mischief of their own. Unfortunately for everyone involved, the joke goes awry when a gang of real-life bandits attacks the ranch.