In the process of finding back the fleet, a Cylon virus has penetrated the computers onboard the Galactica. During a space battle a Cylon ship  loaded with centurions crashes into the battlestar. A fight for the control of the Galactica begins. On Kobol, Chief Tyrol returns from a mission with medical supplies for a dying Socinus.

Guest Stars:

• Dominic Zamprogna - James "Jammer" Lyman
• Chris Shields - Cpl. Venner
• Kerry Norton - Paramedic Ishay
• Lori Stewart - Twinam
• Brad Loree - Bonnington
• Michael Tayles - Lt. S. "Flyboy" Irvine
• Garvin Cross - Collishaw
• Ty Olsson - LSO Capt. Aaron Kelly