It was a brutal murder that sent deranged psychopath Martin Kagan to prison. It was a naive deputy warden that granted him a stay of execution. Now, the police department's tactical defence instructor, John Lomax, wants revenge for his beloved sister's death.

An assassination in the Philippines is caught on film by kickboxer Christy, which leads to her death at the hands of radicals intent on disrupting peace talks. Her sister Kat, a Los Angeles police officer, comes to Manila to try and bring justice to the people responsible. She enters the kickboxing tournament in order to get closer to the nefarious agents, and begins unravelling the twisted plan while narrowly evading the wrath of the Death Brigades.

To avenge the brutal murder of his brother, Jake Ray journeys to the Philippines, where his search for truth finds him battling both in and out of the ring. But the weapons are always the same: bare fists, bare feet. And the rules never change: last man standing wins.

In a post-nuclear future, crime has been eliminated in the city of Soleil through a strict class structure imposed upon the population. Two illegal young lovers are enticed into becoming criminals by a shady guy who promises them a way out of the city so they can continue their lives in peace.