剧情：电影《龙牌之谜》讲述了古老的东方传说——龙王在睡觉的时候睫毛长到地里能够长出茶叶。龙王把法力封印在龙牌里，并把这种力量赋予了替他照料睫毛的白魔法大师（成龙饰）和他的女儿成兰（姚星彤饰）。邪恶的黑魔法师将白魔法大师和成兰关进了异国监狱，龙王也陷入了沉睡，以茶叶为生的广大村民从此生活在水深火热之中…… The English traveller Jonathan Green receives from Peter the Great an order to map the Russian Far East. Once again he sets out for a long journey full of incredible adventures that will eventually lead him to China. The cartographer will unexpectedly face a lot of breathtaking discoveries, encounter bizarre creatures, meet with Chinese Princesses, and confront deadly martial arts masters, and even the king of all dragons, the Dragon King. What could be more dangerous than meeting eye-to-eye with Viy, except doing it again? What would be stronger this time, a staunch skepticism of the scientist or the old black magic that has seized power of Eastern lands?