The film utilizes an oft-used storyline of the war movie genre which has two soldiers in love with the same girl.

This movie has a great introduction by Fleet Admiral Chester W. Nimitz who directly addresses the audience in this movie's prologue. Not often seen speaking in public, Navy buffs will enjoy seeing the Admiral introduce this film. He talks for about two minutes, explaining how he approved the orders for this real life event in World War II. As Commander of the American Fleet in the Pacific region, Nimitz authorized the plan to break the supply chain between the Asian mainland and Japan. The Hellcat submarines were critical to the US Navy achieving this strategy. Nimitz said of this mission: "This is the story of one of the most daring operations in the history of Navy warfare!" According to the 'Hollywood Reporter' of December 1956, the Chester W. Nimitz footage for this movie was filmed in Berkeley, California in late December 1956 and early January 1957. In an uncredited part, Selmer Jackson portrays Fleet Admiral Chester W. Nimitz in the rest of this movie outside of the introduction.

The co-author for the screenplay was credited to Raymond T. Marcus, who was in fact blacklisted writer Bernard Gordon. Ironically, the movie starred Ronald Reagan who was more-or-less a proponent of the blacklist.

The 'Los Angeles Times' in June 1956 reported that Edmund H. North worked on this movie's screenplay but as he is not billed as being a writer in the credits for this picture it is not known the extent to which his work may have been included in the final shooting script.

As declared by the 'Hollywood Reporter' of 4-6 August 2000, the screen-writing credit of Raymond T. Marcus for this film is actually an alias for blacklisted scriptwriter Bernard Gordon. Gordon once said that he thought that it was ironic that he could not put his name to the script due to a blacklist that the actual movie's star Ronald Reagan denied ever existed (to Joseph Alsop in 1980).