A patient in an hospital dies under mysterious circumstances. The attending doctor Frank Holt gets under suspect - he'd been fired already from his last position due to malpractice. For his defense he investigates with help of doctor Anna Lang. Soon they find out that half of their colleagues were betting on the patient's diagnosis - was someone trying to increase his chances? But when Frank's friend, dissector Mary Connor, becomes deadly sick, he suspects there's even more to it.
When drillers on an offshore oil rig dredge up several prehistoric eggs, one man is attacked by what appears to be an unidentified deep-sea creature protecting them. Soon, strange symptoms and behaviors become apparent among the crew and one of the creatures grows to adult-size.
Planet Earth is a devastated wasteland, and what's left of humanity has colonized the Moon in domed cities. Humanity's continued survival depends on an anti-radiation drug only available on planet Delta Three, which has been taken over by Omus, a brilliant but mad mechanic who places no value on human life. Omus wants to come to the Moon to rule and intends to attack it by ramming robot-controlled spaceships into the domes. Dr. John Caball, his son Jason, Jason's friend, Kim, and a robot named Sparks embark on Caball's space battlecruiser on an unauthorized mission to Delta Three to stop Omus.
