As conflicts reach a climax, Cylons and humans face a stark choice.
As the Galactica is stripped for parts, a call for volunteers is made for a final mission.
As Galactica continues to deteriorate, Adama resists the need to abandon ship while Baltar meanwhile emerges as an unlikely voice of hope.
As Galactica continues to deteriorate, Ellen is faced with a decision that could have repercussions for the Final Five, the humans and the future of the Cylon race.
On the Cylon baseship, Cavil confronts the last member of the Final Five.
Rebels take control of Galactica and take steps to eliminate Roslin and Adama.
The opposition to the alliance with the Cylons turns violent, as gun shots echo through the ships and those who support the alliance find themselves under attack.
Adama believes that Cylon technology is the only way to save the fleet, but his proposal for an alliance meets fierce resistance, led by Tom Zarek.
After the startling revelations of the mid-season cliffhanger, the fleet and its Cylon allies have united in a joint search for Earth. They encounter a devastated world where their expectations are shattered by events that echo down the millennia. Kara Starbuck Thrace (Katee Sackhoff) learns that the dire predictions of the Ancient Hybrid (of Razor) may be true about her.
A band of rebel Cylons hold President Roslin hostage while attempting to lure the Final Five out of hiding aboard Galactica.
In pursuit of the enemy's Resurrection Hub, a misfit team of Viper pilots and Cylon rebels become uneasy collaborators as they formulate a battle plan. Meanwhile, President Roslin remains a captive of the rebel Cylons.
President Roslin's abduction by the Cylon Hybrid triggers a bitter power struggle in the colonial fleet.
President Roslin's leadership is tested as Galactica teams with Cylon rebels in a plot to destroy the enemy's Resurrection Hub.
Faith is the best option for both the cancer-stricken President Laura Roslin and Kara Thrace who must put aside their differences to form an uneasy alliance with the Cylons.
The prospect of a truce between humanity and a band of rebel Cylons encourages Starbuck to trust her old enemy, Leoben.
Battlestar Galactica clip - starring Edward James Olmos, Mary McDonnell, Jamie Bamber, James Callis, Tricia Helfer, Grace Park.
Kara Thrace finds a large piece of wreckage on planet Earth and discovers it's a Viper cockpit with the burnt remains of a helmeted pilot still inside. But is she prepared to dig out what's inside the flight suit? Don't miss back-to-back episodes of 'Battlestar Galactica' from Season 4 on Saturdays at 5/4c.
On Caprica, Kara is wounded when an unseen force of Cylons open fire on the human survivors.
Starbuck waits for Anders to wake up from brain surgery, only to be told that he has no brain activity. Don't miss back-to-back episodes of 'Battlestar Galactica' from Season 4 on Saturdays at 5/4c.
While discussing the Cylons' ability to 'project' with Number Six, Baltar begins to wonder about his own powers of imagination.
Galactica has no choice but to fight the Cylons for access to desperately-needed Tylium fuel deposits. It's a dangerous mission and Kara, unable to go with the Vipers, must stand back and watch the maneuver either succeed... or fail.
Amidst the chaos of a critical Cylon battle, Starbuck, long thought to be dead, appears in her Viper and claims to have found Earth. Meanwhile, on Galactica, Saul Tigh is coping with the recent discovery that he s a Cylon.
The crew of Galactica is surprised by Sharon and Ellen Tigh's return. Don't miss back-to-back episodes of 'Battlestar Galactica' from Season 4 on Saturdays at 5/4c.
Starbuck has been haunted by visions from her past in her waking hours as well as in her dreams. Now, while on Viper patrol, she spots a Cylon Raider that no one else sees, and dives after it, hypnotized, towards a dense, swirling storm.
Commander Adama orders his star pilots back to Galactica, but when Apollo's Viper loses power Starbuck has no intentions of leaving him stranded.
During Lee Adama s first days as commander of the Pegasus, Executive Officer Kendra Shaw outlines a risky search and rescue plan. Can Lee trust her to successfully pull off the mission?
While mourning the death of his wife Cally alongside Admiral Adama, Chief Tyrol starts to go off the deep end. Now a self-realized Cylon, he must face up to the fact that he once rejected his true love Boomer when he discovered she was a Cylon.
Starbuck interrogates a Cylon who was discovered and captured aboard one of the civilian ships. But will his mind games get to her before she gets anything out of him?
From Season 4, Episode 8: The cancer-stricken President Laura Roslin and hotheaded pilot Kara Thrace both must make difficult leaps of faith in order to accept an uneasy alliance with the Cylons.
After a sleepwalking incident during which he violently assaulted Cally, Chief Tyrol seeks the help of a priest named Brother Cavil.
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