An escaped murderer plots a bizarre scheme against agent James West, the man who had imprisoned him several years earlier. Attacked and knocked unconscious, West awakens in a stange deserted town filled with assailants wearing masks in the likeness of Stark. Gordon searches for his lost partner and soon finds himself in a similar predicament. West and Gordon must avoid deception to find and take out the real Stark.

In the town of Epitaph, owned by Epitaph Mines, agents James West and Artemus Gordon arrest Norbert Plank, chief bookkeeper for the powerful syndicate that owns the mining company. Through Plank, the agents hope to get their hands on records that could build a case against the organization. The whole town turns out to free Plank, whom West has hidden in a church bell tower, while Gordon masquerades as lay-preacher Hallelujah Harry. Gordon hopes to get to the head of the syndicate, Diamond Dave Desmond, and walk off with the ledgers. But Diamond Dave's girlfriend, Rhoda, has the same idea and blackmail on her mind.

West and Gordon are mixed up in the affairs of the royal family of Karovnia when they come to the US fleeing from assassins in their home country. The agents find that the evil Count Balkovitch is pursuing them, looking for an icon he needs to possess to hold power in Karovnia. Of course, the Count is not acting alone and the agents must discover who is assisting him before his dastardly plans are accomplished.

West becomes involved with the Jupiter Corporation after the director of the board and two others are killed. West exposes a deep plot by the late director's sister,Amelia,to dump stock,cause a panic,then make tons of money off of the cheap stock. West's investigation leads him to an odd bar with a cirus theme and animals who like to throw bombs. West uncovers Amelia's plan to kill off the rest of the board and is able to save the rest of the members.