An evil gang of twins hold up a train carrying a magical Tibetan artifact. A battle ensues and the artifact is knocked from the hands of a parachuting villain into the bag of an unsuspecting passer-by. He then gets into his van and heads off to Hong Kong. This is where the Twins come in; they are aided by Lau Hey (Wu Jing) and Lucky (Sammo Hung) as they try to get the object back. It turns out the artifact may have healing powers and it is a highly desirable item. A secret mission must take place, in which the Twins infiltrate a high rise building in order to recover the item and heal a young friend suffering from cancer. the Twins succeed but the artifact, known as the Heaven's Bead, was soon stolen back by the evil gang of twins and the young friend, known as Happy, is kidnapped and held prisoner in the high-rise building now used as a villain hideout. the Twins, along with several other friends, then recover the Heaven's Bead and rescue Happy but was out-witted by the bad guys, who got away. source: http://en.wikipedia.org/wiki/Twins_Mission
