Told in a series of flashbacks, this episode explains the fate of Lieutenant Starbuck, who crash-landed on a planet with a Cylon Centurion, whom he befriends believing the Centurion to be the only other inhabitant - an assumption that proves false when the Centurion discovers a woman who is on the verge of giving birth to a child and who proves to be a renegade member of the same race as the Seraphs and Count Iblis.