Carriage broken down in an isolated area of Central America, abandoned by her guide and surrounded by bandits, Marta Swan appeals to handsome Ramon Santiago for rescue. A swift ride on horseback takes them to a remote castle nestled in the mountains, where Marta is welcomed by Ramon's employer, an enigmatic, red-bearded man known throughout the region as the Viking. Marta is shocked and terrified to discover the Viking is a madman who believes her to be the reincarnation of a lost princess.
The Viking possesses great treasure, a golden crown and an ancient medallion, which men are seeking and will kill to own. Everything depends upon Marta's finding her archaeologist co-worker, Alan Avery, who has because of their work ventured into Honduras and has vanished into the jungle. But Ramon, who Marta now realizes is acting as her personal bodyguard, will not allow her to escape.
