While Columbia and a Cylon Basestar battle above an icy planet, Adama's squadron battle the Cylon Raiders. As the fight draws to a close with Columbia's destruction, Adama, as an impulsive response for revenge, blindly follows two of the Raiders into the planet's atmosphere.

Adama begins to investigate the mysterious building on the planet's surface only to inadvertently discover the remnants of Cylon's violent experiments with humans.