After several decisive discoveries people were able to overcome interstellar travel. Expansion continued for many centuries, forming the 12 colonies of Kobol. A technical breakthrough occurred in the field of robotics.
Scientists have created a future enemy – humanoid robots Cylons. Some time robots humbly performed the duties until he decided to enslave the creators. Human strength was enough to throw the Cylons, who continued its development in the depths of space. Then, they hit all the colonies people. The survivors went to find a new home, under escort of the Star cruiser "Galaxy".