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Half-brothers Dragon (Donnie Yen) and Tiger Wong (Nicholas Tse) are complete strangers. Dragon keeps company with thugs, while Tiger is as straight as an arrow. But their paths converge when Dragon's crew holds a gangland ceremony at a local restaurant. Tiger, a customer at the eatery, objects, and soon the brothers are duking it out. But, when Tiger and Dragon realize that they were fathered by the same martial arts teacher, they team up for a battle. Wikipedia