The fights progress. Most are not shown so you have no idea what happened to the bank robber or the old Chinese dude with the beard, but finally Christie (Holly Valance) defeats Helena to reach the semis, along with Tina (Jaime Pressly) who defeated Zack, Kasumi and Hayabusa.
Hayabusa decides to sneak into the lab and find out what is going on while the girls distract Donovan, the owner, with a beach volleyball contest. He defeats about a million guards and enters the secret lair - only to be trapped in a staircase.
Meanwhile the 3 girls (Christie, Kasumi and Tina) snoop around and enter the secret lab to find Hayabusa - but are rendered unconscious by a posion gas.
Weatherby, the computer nerd, has had enough - he makes a move on Helena, which seems to work, and together they're off to save the day. Donovan sends in his troops to keep them out of his business.
All 4 semi-finalists awake, trapped in metal pods. Donovan takes to the center of a platform, and starts a device that swipes all of their fighting ability through the injected nanobots, and delivers it to a pair of sunglasses.
He is now ready for the ultimate fight - and summons Kasumi's long lost brother from his cell. With the shades, he can predict the fighter's moves, and wins the battle - knocking him through the wall and out the statue to plummet to his death ... until he is rescued by the purple haired assassin.
Max, the bank robber, breaks into the safe - but is knocked out by the bigger fighter and handyman for Donovan who has come to collect the $100 million stashed away.
Weatherby, with Helena, tries to override the security controls to free the 4 fighters. Donovan stops him just in time, and starts a self destruct sequence. Summoning his last ounce of strength, Weatherby presses a few keys and the pods open.
Donovan makes it out to the statue - and the other 4 fighters with Helena pursue him. Finally his sunglasses are knocked away. Kasumi's brother delivers a one-inch punch to his foot, and Kasumi flicks one of the little needles into his neck to paralyse him.
The fighters dive into the water below to escape the explosion. Those still inside the lab get out through a fire escape, but leave the money. Donovan is burned up.
Lying in the ocean, the pirates from before show up - but get a surprise when they find Tina. Tina takes their boat and picks up the others. All the couples are happy together - except poor Tina.
Later, the women stand posied ready for battle in a line with swords - and face an army of warriors from Kasumi's over-zealous tribe.