In the seventh millennium, AD, Galactica is the only surviving battleship after an attack by the evil Cylons. As a result of the attack, peace is destroyed and most of humankind have been wiped out. Led by Commander Adama, Galactica and a hundred or so smaller ships flee to try to find refuge on the legendary but unknown planet Earth. The Cylons, with the help of the equally evil Count Baltar, are in hot pursuit.