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.
When the 12 Colonies of Man are wiped out by a cybernetic race called the Cylons, Commander Adama and the crew of the battlestar Galactica lead a ragtag fleet of human survivors in search of a "mythical planet" called Earth.