Varth follows the story of a disaster that
befalls a human colony on a planet of the same name. The entire
colony is run by a 7th generation supercomputer which controls
the operations of all machinery on the planet. Unfortunately for
the residents of Varth, Delta-7 has been possessed by the entity
"Duo", thought of as an evil spirit but actually a temporal-spatial
consciousness which spontaneously arose within the supercomputer.
Duo has come to the conclusion that human existence is inimical to
the planet, and has therefore turned the planet's defenses against
its own populace. Eighty percent of the planet is laid waste by
the event, and this is only the beginning of Duo's cleansing scheme.
The colonists' reliance on the supercomputer has caused them to
lose the ability to take care of themselves, and thus have no means
of fighting back. The only hope for the colony lies in the pilots
of two planes equipped with 4th generation computers which Duo
cannot controlthey are controlled not by machinery, but by
humans. (Wikipedia)