Fu Manchu, a diabolical mastermind, seeks to freeze the world's oceans using his new device, while Dr. Nayland Smith, a British agent, stands in his way.

The Castle of Fu Manchu
The diabolical Fu Manchu hatches a sinister scheme to capture a vital Turkish stronghold, securing a prized opium stash to propel his malevolent plan to render the world's oceans motionless.