The Cylon Empire tricks the Twelve Colonies into believing they are striving for peace. Then they ambush the unprepared colonies and destroy the military's Battlestar fleet. One surviving Battlestar, the Galactica, under the command of Commander Adama, gathers the remaining humans and leads them in the search for the legendary 13th colony called Earth.

Apollo and Starbuck discover a void in space. Commander Adama is convinced that this void will lead them to the planet Kobol, and orders they go through.