Dredgedale Correctional Facility is situated deep beneath the surface of the wasteland and the only way out is the way in. There simply is no escape! A new prisoner is assigned to cellblock C on the lower level of the facility. His inmates are partially demented and all seems to go well until tragedy strikes.

The multi-purpose submarine is still searching for the perfect location. The commencing of the underwater project is still on hold, awaiting the success of the submarine's mission. The predators are still out there, along with a new threat to their mission. An important discovery is made, but does it require the ultimate sacrifice?

The satellite station returns, but remains crippled and off course. It faces yet another danger! Zulu 5000 is on a direct collision course with the returning comet. A remnant of a previously failed mission remains entangled in the comet's particle field.

It drifted in unity with a large field of ice and unknown debris. The drone continually embraced and tugged against the surrounding bodies, like a school of fathom fish in the ocean, or particles in a closed container becoming excited when heat or pressure is applied. At the source of the magnetic field was a huge dense cluster of frozen water particles, known as the tail or coma.