Twin brothers have been seperated since birth and have grown up worlds apart. John Ma was educated and a world famous maestro. The other, Boomer was raised with street smarts and is a martial arts master. The've never met...until now. In a case of mistaken identity BOOMER and JOHN MA must switch gears, swap places and take action to save themselves from the Hong Kong mob. The final showdown is a dazzling display of Chan's acrobatic and fighting agility, all contained in some of the best action sequences he has ever brought to the screen. Twice the fun - twice the excitement!