Captain Carroll hires a notorious sailor, Woolf Barstow, as his first-mate despite his history of ship losses. Barstow plots to take over the "Marigold" and has his sights on the captain's daughter, Mary. He poisons the captain, kills the second-mate, and plans a fake cargo with a Chinese merchant. Meanwhile, a derelict sailor, Steve Trent, joins the crew along with his drunken friend, Bloater.
Out of Singapore
A ruthless gang of thugs takes over a doomed ship, threatening the lives of the captain, crew, and passengers as they sail towards destruction.