A botanist has spent three years aboard the space freighter "Valley Forge" preserving the only botanical specimens left from Earth under huge geodesic domes. When he receives orders to destroy the project and return home, he rebels and hijacks the space craft, killing his fellow crewman and injuring himself. He plunges the ship into the gaseous Rings of Saturn, where he embarks on the loneliest adventure of all with only two drone robots to keep him...

A massive earth tremor opens a deep crevasse in the California dessert, releasing a bizarre and deadly breed of foot-long cockroaches which threaten to destroy the city of Riverside before spreading across the country. Entomologist Bradford Dillman tried to find a way to deal with these virtually indestructible creatures. The roaches also seem to have a high intelligence which makes Dillman's task nearly hopeless. This is a creepy crawler right out...