Interesting adventure film: When industrialist Jonas Bracken's wife and children are kidnapped from their Athens home by terrorists and taken to a fortress high atop a cliff, Mrs. Bracken's first husband Jim McCabe (James Coburn) arrives and is determined to rescue them. When he meets a group of daredevil circus performers using hang-gliders, he crafts a plan to get Mrs. Bracken and the children (one of whom is in fact McCabe's own son) out of the monastery by hang-gliding in, then using the hang-gliders to take the captives away. Good acting by everyone, and the rescue scene is quite exciting.