When a group of ill Cylons from the infected Basestar is brought to Galactica, Lee discovers a way to solve the Cylon problem forever - by destroying the whole Cylon race. Meanwhile, D'Anna Biers (Number Three) believes Baltar knows who created the virus that infected and disabled the Cylon baseship. She is willing to take extreme measures to learn the truth.

A look at the events that took place during the year-long gap from the storyline in the Season Two finale. The story reveals the reasons for the rift between Kara ("Starbuck") and Lee ("Apollo").