There may be a strong case that this film's stylistic rigor ventures far enough into Film Noir territory that it deserves to be recognized with that desirous moniker. Even Diana Lynn might be considered a poor-woman's Gloria Grahame. The plotline is expressed through infrequently narrated flashback by Glenn Ford's character Al Colby who is held by Mexican authorities hoping to determine his 'full story'. The atmosphere is thick and even after nearly an hour of shadowy adventure we are still unsure if our protagonist is a typical Noirish anti-hero or the stand-up Hollywood norm. The 'Plunder' which, in this case, refers to a large cache of gold and jade from an ancient Zapotecan temple, lies with 3 pieces of parchment that detail its location - if it can only be translated. The characters are all greed-driven and one dimensional - a stranded American insurance adjuster; a zealous collector; a scheming archaeologist, one, or possibly two, true femme fatales. Unfortunately, the well directed story seems to race to the finish leaving much to be taken for granted. Still, an excellent build to a weak climax with Ford as good as he ever is and the supporting cast play their roles to a 'T' in the exotic locales sought out by the independent production team of John Wayne and Robert Fellows. I enjoyed it very much.