Dennis Morgan, still billed as Stanley Morner, essays his first leading role in the Halperin Brothers' I Conquer the Sea. The star is cast as Tommy, a harpooner on a whaling ship who loses an arm during one excursion. Rosita (Steffi Duna) is in love with Tommy, while Tommy's younger brother Leonard (Douglas Walton) is in love with Rosita. Realizing that he'll never be able to properly support Rosita, Tommy sacrifices his own happiness (and his life) for the sake of his brother. A subplot involving prejudice against the whaling community's Portuguese residents wends its way in and out of the plotline. The otherwise pedestrian I Conquer the Sea is enlivened by some authentic (and rather gory) whaling footage.
by Hal Erickson synopsis