Mix an impregnable fortress prison, a garrison of highly trained soldiers, a legendary martial arts master and a rag tag group of mercenaries, add one bad-ass warlord and you've got the recipe for mayhem, Hong Kong style. John Liu, a kung fu master, is hired to rescue a revolutionary agent from the fortress of an evil warlord. To help him are five mercenaries trained in the deadly art of kung fu fighting. Disguised as a traveling acrobatic troupe, this Dirty Half Dozen sets out on their rescue mission and inevitably, the fists start to fly!