This B-budget outing from co-directors Crane Wilbur and Joseph H. Lewis served as a vehicle for now-forgotten 1930s star Conrad Nagel. At the outset of the story, foreign agents abduct a U.S. naval officer, Dr. Matthews (Phil Dunham) who holds a secret formula. Federal agent Alan O'Connor (Nagel) gets summoned and a transcontinental pursuit begins. O'Connor teams up with a comely reporter, Bobbie Reynolds (Eleanor Hunt), and the two smuggle their way aboard the tramp steamer that holds Matthews. Unfortunately, the boat has just left port, and the couple must not only rescue the scientist, but find a way to survive and return home safely.