Far up the Yangtze, the European residents in Chungking are threatened with rebellion and massacre by the Chinese. Tactful intervention in rescuing the terrified civilians is essential. No sooner has the naval party landed at Chungking than the unfortunate Captain Watkiss is captured, leaving Lieutenant Halfhyde with a dilemma: should he effect the safe removal of the stranded Europeans, or pursue Watkiss' Chinese captors