Terrorists led by an android take over a nuclear plant and threaten to launch a missile at Washington. While the authorities desperately attempt to negotiate, the terrorists persue their real goal. A plant worker, her son and a tough-guy repair man have other ideas, and attempt to stop the terrorists from inside the plant.

It has been 25 years since the ore spaceship Siberia was last heard from. Unfortunately, it is now on a collision course with the communications station Comstat 5 which is orbiting Mars. After one successful maneuver to avoid the Siberia, it rams Comstat 5 and the crew soon finds that the Siberia crew is dead and the reason that it has been missing for 25 years. But that reason is trying to destroy them all as it destroyed the Siberia crew.

Legend says that the sacred crystal is the source for all life and was created at the beginning of time. Kyla has sought the crystal to use its powers for himself and he takes the crystal after smashing the defenders on the Planet Sintaria. But there is another identical crystal on Earth and Ladera heads there to get it before the evil Kyla. She finds that Jed has taken the crystal from is hiding place, but Victor and his inexhaustible hit men want it for money they gave to Jed. Ladera easily handles the weak earthlings and saves Jed, but Kyla is also after the crystal. Jed and Ladera must find the crystal before Kyla, the clueless cops or the dimwitted villains.

A mad scientist's DNA experiment on the bones of a mysterious jungle creature brings the carnivorous beast to life, and only his former assistant Ash Mattley and CIA operative Claire Sommers can stop it.