During WWII, Duke E. Gifford is second in command of the USS Thunderfish, a submarine which is firing off torpedoes that either explode too early or never explode at all. It's a dilemma that he'll eventually take up personally. Even more personal is his quest to win back his ex-wife, a nurse; but he'll have to win her back from a navy flier who also happens to be his commander's little brother.
Operation Pacific is a 1951 black-and-white World War II submarine war drama from Warner Bros. Pictures, produced by Louis Edelman, and written as well as directed by George Waggner. John Wayne and Patricia Neal star and Ward Bond and Philip Carey play supporting roles.