In the wake of the Cylon sneak attack, the ragtag fleet of human survivors is forced to play a deadly game of cat-and-mouse with their pursuers. Every 33 minutes, they make a jump to a new location. And every 33 minutes, the Cylons manage to find them. The pilots are on the brink of exhaustion, relying on artificial stimulants to keep fighting, and the civilians are beginning to doubt the leadership of Commander Adama and President Roslin.
When the Olympic Carrier, a commercial passenger ship, fails to make a jump and then later mysteriously turns up unharmed, Adama fears it has been infiltrated by the Cylons. His choice: destroy it and the 1,300 souls it might still be carrying, or risk the annihilation of the entire fleet. Adama is not alone in fearing the mystery ship. Baltar, who remains mentally connected with his beautiful and deadly Cylon companion Number Six, panics when he learns one of the ship's passengers has information about a traitor in the president's inner circle.
Meanwhile, down on the ruined, Cylon-occupied colony of Caprica, Helo is on the run from another group of Cylons. He's going to need help to make it back to the Galactica, but there's no help in sight.