Identical twins Chad and Alex Wagner are separated as infants when their parents are brutally murdered by Hong Kong gangsters. Unaware of each other's existence, Chad grows up in Paris, raised by their family's loyal bodyguard Frank, who takes on the role of Chad's trainer and mentor. Chad leads a comfortable life, teaching aerobics and practicing martial arts. Meanwhile, Alex is raised in Hong Kong, enduring a tougher upbringing and becoming a street-smart smuggler entrenched in the criminal underworld. Frank eventually discovers Alex's existence and brings Chad to Hong Kong in an effort to reunite the brothers and reclaim their family's fortune.

As the brothers meet, they must grapple with their strikingly different personalities and experiences while facing the murderous gang led by the corrupt businessman Raymond Zhang and Andrew Griffith, who conspired against their parents. Together, with the help of their allies, including Alex's girlfriend Danielle, they seek revenge for their parents' deaths and aim to reclaim what is rightfully theirs. The journey forces Chad and Alex to navigate betrayal, danger, and their own conflicting natures, relying on their combined martial arts skills to confront those responsible for their family's downfall.