With rough weather ahead, an American sub stationed outside of Singapore tries to make its way to calmer seas...but a fateful collision causes them to take on water. With their radio knocked out, panic starts to overtake the trapped sailors...and the commander (Charles Gerard) finds himself questioning the suspect past of his torpedoman (Kenneth MacKenna). John Ford's gripping opus co-stars Frank Albertson, Stu Erwin; keep an eye out for John Wayne as a radio operator. 73 min. Standard; Soundtrack: English Dolby Digital mono.