A Scottish immigrant on board ship becomes a pawn in a jewel heist aboard the S.S. Cognac, a three-star liner. Blackie Dawson, the uncrowned king of jewel thieves, and his accomplice Pearl Blackstone, have stolen a huge ruby. A detective is searching every cabin, so Blackie forces our young Scot to swallow the gem and, under threat of being shot, to stay mum. The detective is assisted by Flora Danube,... see more