Battlestar Galactica is a franchise of American science fiction films and television series ... In a distant part of the universe, there exists a civilization of humans who live on planets known as the Twelve Colonies. The Colonies are in an uneasy armistice with a cybernetic race known as the Cylons, but with the cooperation of a human collaborator named Baltar, the Cylons launch a sudden, coordinated, and unprovoked attack on the Colonies, laying waste to the planets and devastating their populations. The last few thousands of the human survivors flee into space aboard any spacecraft they can reach. Of all the Colonial Fleet, the Battlestar Galactica appears to be the only military ship that survived the attack. Under the leadership of the famed military leader Commander Adama, the Battlestar Galactica and her crew take up the task of leading the ragtag fleet of survivors into space in search of a fabled refuge known as Earth.