In a moment of bad judgment, Kara sleeps with Gaius Baltar. Boomer and Crashdown discover a planet that Roslin believes is Kobol, the ancient homeworld of humanity. Boomer continues to struggle with her Cylon instincts, leading her to thoughts of suicide. Adama believes that the fleet could settle permanently on the new planet. However, the Raptor scouting party discovers a Cylon fleet near the planet. On Cylon-occupied Caprica, Helo encounters Caprica Sharon for the first time since he learned that she is a Cylon.