
A crack team of Italian naval divers plan to attach high explosives to the hulls of Royal navy warships anchored in Gibraltar harbour.
Cast

Eleonora Rossi Drago
Marion

Pierre Cressoy
Silvano
Carlo Bellini
Unknown

Tino Carraro
Commander
Giovanni De Fazio
Unknown

Charles Fawcett
Unknown

Riccardo Garrone
Unknown

Paul Müller
Foreign agent

Rio Nobile
Unknown
Colombo Pamolli
Unknown

Paolo Panelli
Unknown

Mimmo Poli
Unknown
Giorgio Spaccarelli
Unknown
Giovanni Tadini
Unknown
Tsao Hong Tche
Unknown

Mario Ferrari
(Voice dubbing for Pierre Cressoy)
Adriana de Roberto
(Voice dubbing for Eleonora Rossi Drago)
Crew

Duilio Coletti
Director, Writer

Giuseppe Berto
Writer
Marc-Antonio Bragadin
Writer
Enzo Cossa
Writer, Producer

Ennio De Concini
Writer

Francesco De Robertis
Writer
Gisa Radicchi Levi
Editor

Aldo Tonti
Director of Photography, Underwater Camera
David Carbonari
Assistant Director
Gian Giacomo Cossa
Assistant Director

Luigi De Laurentiis
Producer
Mario Rappini
Production Design, Costume Design
Aldo Calpini
Sound
Paolo Uccello
Sound

Nino Rota
Original Music Composer
Victor De Sanctis
Underwater Camera
Giovannella Zannoni
Script Supervisor
Francesco Solitario
Key Grip