It has now been twenty-two years since Galactica and the remnants of Colonial civilization arrived at Earth. The two civilizations of Men that met that year are now one people. They have overcome another cataclysmic war against the Cylons seventeen years earlier, and are prepared to take their collective Humanity on an historic mission. In Australia, the two largest Battlestars ever constructed are ready to lead a new space fleet: this time to return to The Twelve Colonies of Kobol.

The first fleet to travel from Earth to the Twelve Colonies has arrived. As Admirals Lee Adama and Kara Thrace-Bond begin the process of reconnaissance on the twelve worlds, they immediately run into trouble on the most important planet of all-Caprica.

In a few months, the second fleet to sail from Earth to the Twelve Colonies would arrive. Their mission would be to continue the work of the first fleet, preparing The Colonies for long-term recolonization. However, a large group of people, living in the Caprican Mountain Range, pose a threat to not only reviving Caprica City but the entire planet of Caprica and the future plans for the Twelve Colonies. Until the people who occupy what is called The Kingdom are removed, the entire venture hangs in the balance. With the approval of Governor Justin Bond, Lee Adama launches a military campaign against The Kingdom. Everyone will be deeply affected by this conflict, but none more so than Starbuck.

The Bonds had calmed down from the hilarity and were munching on their lunch when there was a sudden knock on the door. "Governor, it's Caprica, may I enter?" The looked at each other. It was unusual for The Admiral to make a house call. "Of course, Admiral, come on in." Caprica opened the door, which didn't surprise them...but Kara was in her wake. Judith Bond went immediately pale on seeing the stricken look on her daughter's face. "Kara...what is it?" Kara went up to her mother, with tears in her eyes. He father moved in next to his wife. "It's Nick. His Raptor was shot down."

It is the year 2042 on Earth, fifteen years after the cataclysmic war against the Cylons. Humanity is building a great fleet and Battlestars and other ships of space. In two years' time, the largest Battlestars every constructed will lead a fleet on a mission back to the Twelve Colonies. But as mankind is poised for a future that seems boundless, a natural disaster and old hatreds in the small nation of New Caprica rise up and test the courage of many.

After arriving at Earth, Kara "Starbuck" Thrace is given a new lease on life. A few years after their arrival, the unthinkable happens: the Cylons are approaching Earth. In this companion piece to "Battlestar Galactica: Collision", we follow Kara's journey from after First Contact with Earth through the Earth-Cylon War. Kara finds herself in a familiar predicament: fighting a war for the survival of Humanity while fighting another war for her very soul.

It is the year 2046, and the first mission from Earth back to the Twelve Colonies is approaching the halfway point. The two largest Battlestars ever constructed are leading a fleet that will begin the process of bringing civilization back to those worlds. The Fleet is approaching a planet that is known back on Earth as Kepler 452b, also called "Earth's Cousin". A scouting mission is launched to observe the planet, and they discover a terrible truth: Kepler 254b is the Cylon Earth that Galactica visited more than twenty-five years earlier.