The Vigilante, a masked government agent, is assigned to investigate the case of the "100 Tears of Blood", a cursed string of rare blood red pearls sought by a gang led by the unknown X-1 that may have been smuggled into the country.
Greg Sanders (Sanders at that time, later changed to Saunders in the comics), in his civilian guise as an actor, is filming a western on George Pierce's ranch. Pierce is a wealthy rancher and nightclub owner. When the Prince Hamil arrives to the ranch, he gives a horse each to Saunders, Pierce, Captain Reilly, Tex Collier and Betty Winslow. But an outlaw gang soon attacks, attempting to steal all five horses. It turns out that each horse has twenty of the pearls hidden in their shoes (five in each) in secret compartments. Edging closer, Sanders learns that a prince's servant stole the diamonds from his master and smuggled them in on the horses with the intention of passing them on to X-1.