Apollo and Starbuck discover a void in space. Boomer and Jolly discover a Cylon listening outpost on an asteroid. Jolly is critically dizzy at the return to Galactica.
When Apollo and Starbuck find a primitive sleeper ship carrying a man, a woman and four children, speculation spreads in the fleet that the people are from Earth.
Starbuck crashes on the planet Trillion, where the Cylons have destroyed all the humans except for a band of children, who have become warriors to save their enslaved father.
Starbuck is assigned to test a new ultra-fast, but unarmed, Viper with a talking computer named C.O.R.A. When he meets a bootlegger, who steals the Viper, Starbuck finds himself arrested by the Galactic Police of a prison planet.
When Starbuck's rival in a popular sporting event is found murdered, all the evidence points to Starbuck; and Apollo is about the only person who believes in Starbuck's innocence.
Count Iblis gains overwhelming popularity with the Council, but Commander Adama remains unconvinced. He sends Apollo, Starbuck and Sheba back to the planet where they found the Count to investigate.
Starbuck runs into his long-lost love, Aurora, who is involved with a group trying to free the electronics ship Celestra from its supposedly dictatorial captain.
While Commander Adama leads the rag-tag fleet of ships to the planet Kobo, Starbuck is taken prisoner by the Cylons as an important part of a renewed peace plan plot by Baltar.
An old con man known as Chameleon meets Starbuck and convinces him that he may be Starbuck's father, to gain Starbuck's help in evading a trio of bloodthirsty Borellians who are after him in revenge for another con.
When the Cylons trick the human fleet and destroy all its ships except the Battlestar Galactica, Commander Adama gathers up the remaining humans from the 12 colony worlds and leads them in search of the legendary 13th colony: Earth.
When Baltar plans his escape with the help of the three Borellians and the Eastern Alliance Enforcers, members of the Council of Twelve are taken hostage, and Adama must give in to the escapees' demands.
Baltar attempts to lure Galactica into range of a gigantic pulsar cannon. Adama becomes aware of the trap and sends in a team of commandos to destroy it.
The brash Commander Cain insists that the Galactica join in on a frontal attack on the Cylons -- an attack that Adama believes would be a suicide mission.
A Cylon kamikaze attack leaves the Galactica burning in space, with no way to extinguish the blaze that has trapped Boomer, Athena, and Boxey except a dangerous spacewalk by Apollo and Starbuck.
When a Cylon attack destroys most of the fleet's food supply, Galactica must trade equipment for grain on a rural planet plagued by the Borays, a group of pig-like marauders.
