Wanderers of the West plot
"MYSTERY MAN OF THE BAD LANDS! Neither the law nor the lawless can discover the secret of this two-fisted stranger's past...but they know he's hunting the deadliest killer in the roaring west!"
Tom Mallory poses as the wanted bandit known as "Arizona" to find his father's killer. His only clue is the name "Westy Mack". Mallory and his partner Slim meet Waco Dean, the ranch foreman. In addition to being a foreman, he is also a cattle thief. Waco tells Mallory that he can take him to Westy Mack if Mallory helps him steal the cattle from the ranch where Waco works. Mallory discovers that the ranch is run by Laura Lee, an old acquaintance of his.