A submarine crew captured by the Japanese attempt to escape from a remote island prison camp during WWII. Young leading man Cliff Robertson's efforts to appear older by sporting a Gable 'tache gives him the unfortunate appearance of a second-rate gigolo in uniform, but he gives a decent performance in this reasonably entertaining war picture. Presumably, budgetary constraints are responsible for its' prison camp being one of the most sparsely populated in movie history.