Watch Valley of the Double Dragon for Free: How to Stream the Movie Online at 123Movies. . This film takes place during Japan's occupation of China during World War 2. A downed U.S. fighter pilot George forms an uneasy alliance with a group of Chinese freedom fighter Guerillas, Wang Lung, Wang Fung, Fa Par Chi and Shi Gin Don as they oppose the Japanese soldiers who have been destroying the countryside with the help from a crazy Nazi.