Two new sailors, L/S Steele and Ord. Jones, join Hero. They quickly come into conflict with AB Radcliffe, who'd had a bad history with Steele in a previous ship. The situation worsens when Steele is promoted and reports Radcliffe for insubordination. When Steele disappears overboard, suspicion naturally falls on Radcliffe as the crew, knowing that Steele's chance for survival in the cold North Atlantic water is dwindling with each passing moment, desperately search for the missing man.