The Final Five begin the download of the technology for resurrection, with Saul and Ellen Tigh, Tory Foster and Galen Tyrol dipping their hands into Samuel Anders' amniotic fluid to transfer the data to the Colony. But as they download the info, they can see each other's memories. Tyrol is made aware that Tory murdered his wife, Cally, and kills her in revenge before the downloading is complete. Feeling betrayed, the Cylons resume fighting; after the other Cylons in CIC are killed, Cavil commits suicide. In the debris field, a chance rock strike causes Racetrack's hand to fall on the launch button for her Raptor's nuclear weapons; the missiles strike directly into the colony, knocking it out of orbit. With Galactica being dragged toward the singularity along with the colony, Adama orders Starbuck to jump the ship away, anywhere. Starbuck finds herself entering coordinates into the computer as if she were playing a song, using the notes which Hera had written. Galactica jumps away and out of danger, leaving the colony to inevitably fall to its destruction within the black hole.Galactica arrives at Kara's mysterious coordinates, its final destination as the damage caused in the battle has rendered the ship incapable of surviving any further jumps. Miraculously, the Galactica finds itself in orbit around a habitable world: our own Earth. Hours later, the rest of the fleet has been summoned. Lee makes the unorthodox suggestion that they abandon their technology and start afresh, while Adama and others discover primitive humans already occupying the planet. Since finding Earth was always the goal of the Colonial Fleet, Adama suggests they call this planet Earth. The survivors - Galactica's crew, the remaining inhabitants of the fleet, and the Cylon Twos, Sixes and Eights - take basic supplies and spread out across the planet - not to colonize it but to blend in with primitive early humans, leaving Anders to fly the fleet into the Sun. The decision was made not to colonize this time, but to break the cycle. "All this has happened before..." but maybe it won't happen again. Leave it all behind and start over. "We can give them the best part of ourselves, but not the baggage". The Rebel Cylons decide that their Centurions have earned their freedom, and give them control of the Basestar, which jumps away to parts unknown. Starbuck, her destiny completed, literally vanishes without a trace after saying goodbye to Lee.
Baltar and Caprica Six are visited by their Inner messengers, who inform them that their destinies - to save Hera - have been fulfilled, and the two decide to live out the rest of their lives together. Lee expresses his desire to venture off and explore the planet. Tyrol decides to settle by himself on a remote northern island (implied to be the Scottish highlands). Helo, Athena and Hera are reunited as a family. Tigh and Ellen stay with the rest of the survivors. Adama leaves with Roslin, but while admiring the wildlife and looking for a place to build a cabin for them, Roslin dies peacefully. Adama finds the place where he will build the cabin, and buries Laura on a nearby hillside.