An Italian submarine captain tries to navigate his sub through enemy waters while being stalked by a British warship. They both make it to the neutral port of Tangiers where they agree a truce.

• Galatea Film
• Panoramas-Films
• Lilli Palmer
• James Mason
• Gabriele Ferzetti
• Alberto Lupo
• Valeria Fabrizi
• Renato De Carmine
• Daniele Vargas
• Andrew Keir