RZA leads a small army of martial-arts warriors, each with a number tattoo to indicate how good they are. Among them are the lethally brutal Number 2 (Crump) and the fierce Twenty (Rhatha), whose tattoo is spelled out across her cleavage.
Kham (Jaa) is pursued by RZA's gang of toughs, and is eventually captured and branded as No 1.
One fun bit has Jaa and Crump fighting on an electrified railway line. In a move that defies the laws of physics, they both dip their feet in water and stand on the rails shocking each other. As their fists swing they make the same sounds as lightsabers from Star Wars.