Nick Parker was a Vietnam vet who was blinded during the war. He was found by one of the local tribes, who taught him to enhance his remaining senses and to expertly wield a sword. On his return to the United States, he goes to visit an old Army buddy, Frank Devereaux, but discovers that he and his wife are divorced, and Frank no longer lives there. What they don't know is that Devereaux was playing in a crooked casino in Vegas, and accumulated a large debt. The casino boss is willing to forgive...