The crew of the Battlestar Galactica lead the last surviving humans searching for the long lost thirteenth colony: Earth.
The ill Roslin and hotheaded Starbuck find it hard to accept an alliance with the Cylon rebels.
A possible truce with rebel Cylons leads Starbuck to put her trust in an old enemy.
Gaius Baltar tears the fleet apart -- again -- by telling people to believe in the Cylon god.
Kara leads a lonely search for Earth as intrigue and strife plague humans and Cylons alike.
Internal conflicts plague both humans and Cylons as issues of faith and loyalty boil to the surface.