Apollo assists in the search for a missing Raptor team as the new commander of the Pegasus grows increasingly unstable.
A woman takes hostages on Cloud Nine and demands that Adama turn over Sharon in order to avenge her husband's death at the hands of the Cylons.
Kara arrives in the Blackbird with detailed photos of the mysterious Cylon ship. Despite the new truce between Adama and Cain, Roslin continues to see Admiral Cain as a dangerous threat, one that needs to be dealt with firmly.
The Galactica crew is overjoyed when they encounter another Colonial battlestar, the Mercury-class Pegasus. The elation fades when Admiral Cain takes command of the fleet. The Galactica crew learn about the harsh practices onboard Pegasus. The tension boils over when Helo and Chief Tyrol learn about Lt. Thorne, the "Cylon Interrogator."moreless
Sharon informs Adama that the Galatica has been infected with a computer virus that is tampering with the basic ship functions and is scanning them for weaknesses. All this is preparation for a major assault by the Cylon Raiders. So with the clock ticking, Adama must pull himself together and decide whether or not she can be trusted. Meanwhile the flight crew is hard at work on a new fighter named The Blackbird.moreless
A reporter is sent to Galactica to chronicle the harsh realities of life during wartime. Lucy Lawless guest stars as the television reporter, D'Anna Biers.
A week after last week's exciting episode, Adama returns to an excited CIC and retakes command of his ship. He orders a ship-to-ship search to find the President, but fails to find her before she sends out a message informing the other ships in the fleet that she knows where Earth is, and that she will lead them there. Over a third of the fleet leaves Galactica's protection and jumps back to Kobol to await the return of Starbuck.
Back on Caprica, Starbuck has been shot and is under medical care in a strange looking and sounding hospital.
Caprica Boomer returns to Helo, and helps him lead a raid on the hospital where Starbuck is being held which leads to a chilling discovery.moreless
The Galactica successfully reunites with the fleet, but the Cylons are still onboard the ship. Col. Tigh orders Lee to stop the Centurions from reaching Aft Damage Control before they vent the atmosphere from the ship. On Cylon-occupied Caprica, Starbuck and Helo visit her old apartment. Helo takes note of the abstract paintings on the wall. On Kobol, Baltar has a nightmare about Adama. Tyrol and Cally go on a supposed rescue mission.moreless