A crazed Chechen nationalist, BASAYEV, seizes control of Chernobyl, site of the infamous nuclear meltdown, and threatens to unleash a radioactive cloud unless his nationalist blackmail demands are met. LUC DEVEREAUX (Jean-Claude Van Damme) joins a U.S. team of revived UniSoldiers secretly held in deep storage. Their mission: retake Chernobyl and disable explosives that will unleash the radioactive clouds. Luc is surprised when he finds one of the reactivated UniSoldiers is a clone of his old Sergeant, ANDREW SCOTT (Dolph Lundgren). But the cloned Andrew has no recollection of Luc. As the team furiously battles its way into the Chernobyl plant, they are caught off guard. Using a mind-control chip, Baseyev turns Andrew against his own comrades. Now surrounded, wounded, and out-numbered, Luc must battle Andrew, and save the world.