| Director | T. J. Scott |
|---|
In 2020, ecological disaster has driven the wealthy to an underground city. Jason Storm is part of an elite security force called the Tracker-Communicators who protect the city against the surface world survivors who could not afford to escape. Zoey Kinsella, the deceased founder's daughter, joins him as his rookie partner. After a raid by starving surface world survivors breaches the city's force field, Zoey comes to believe they have inside help. Storm acknowledges the possibility but is more concerned with his clashes against the Controller, the leader of the city's security, and his enforcer Bigalow. The Controller wants to replace human Tracker-Communicators, with a new generation of cyborg TCs, called TC-X.
Niki Picasso and his gang penetrate the underground city's force field and head directly to a disused area of the city. There, in a hidden cache, they find ammunition and an automatic rifle, a weapon that has become extremely rare. While Picasso pins down Storm and Kinsella, an unseen adversary shoots Kinsella dead. Convinced of a coverup, Storm angrily resigns, only to have the Controller send Bigalow to kill him. When Storm escapes the city, the Controller frames him for Kinsella's death and sets the security forces after him. Unknown to Storm, the Controller has Kinsella resurrected as a cyborg and programs her to be his personal assassin. Her first mission is to seduce Picasso and recruit him to take over a research facility guarded by the Lifers, a powerful gang.
On the surface world, Storm encounters a martial arts master, Sumai, and his daughter. Sumai helps Storm infiltrate Picasso's lair, but the cybernetic Kinsella easily defeats Storm. As Storm recovers, Sumai trains him. Sumai, former head of security at the research facility, tells Storm that Kinsella's father was the person who founded it. The facility was originally meant to counter the ecological damage but was converted into a chemical weapons factory. Suspecting that the Controller seeks the biological weapons to take over the surface world, Storm and Sumai recruit fighters who are willing to stand up to Picasso. As Picasso overpowers the Lifers with his rifle, the Controller murders the city's leader, the Overlord, and joins him.
After launching the chemical weapons, the Controller double-crosses Picasso. As the Controller flees the facility, Picasso confronts and kills him, though he is now left trapped in a silo. The chemicals, though currently inert, will kill every surface dweller unless a countdown is aborted. After defeating Bigalow and his men, Storm and Sumai break into the control room, where the Controller has left Kinsella. Storm helps her remember her true self, and she guesses several passwords. Finally, with time running out, Sumai guesses the correct password and saves the surface world. Picasso calls for help; when they ignore him, he vows revenge.