During World War II, Captain Cassidy and his crew of submariners are ordered into Tokyo Bay on a secret mission. They are to gather information in advance of the planned bombing of Tokyo. Along the way, the crew learn about each other as they face the enemy and some of them lose their lives.
This was a great and highly enjoyable WWII submarine thriller for me. One of my favourite American war films made during wartime and easily the grittiest performance I have ever seen from Cary Grant. Some marvelous and exciting work with a great supporting cast of fine actors from that era that one just loved to see when going through films of that particular epoch. Very fine stuff to see here for the adventurous cinephiles out there who just assume Grant was a lazy comic actor who sleepwalked through his films.