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.
The Battlestar Galactica saga began on one devastating day, when the human population of the Twelve Colonies of Kobol was annihilated in a series of surprise attacks by their own creation-the Cylons, a race of sentient robotic clones. The few survivors huddled together on space ships, facing almost certain death at the hands of their ruthless enemies. In Battlestar Galactica: Season 4.5, Commander William Adama (Emmy Awardr-winner Edward James Olmos), the hawkish military leader of the last surviving battleship, searches for a habitable planet as the murderous Cylons follow relentlessly. As mysterious premonitions help Laura Roslin (Mary McDonnell) the President of the Twelve Colonies, guide the ship to the fabled Thirteenth Colony, Earth, treacherous double agents, Cylon spies and internal dissent plague the Galactica. The ship's crew and passengers battle for their lives-and the survival of the human race-armed with only cunning and determination against the military might of the Cylon Empire.
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.
When the survivors on Kobol disagree on strategy against the Cylons, things get ugly...
Lee Adama confronts Colonel Tigh about his involvement in the Fleet's black market.
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.
Number Six tells Baltar there's no Cylon chip implanted in his brain and that she's a figment of his imagination...
While discussing the Cylons' ability to 'project' with Number Six, Baltar begins to wonder about his own powers of imagination.
The discovery of a pregnant 17-year-old stowaway aboard Galactica sparks a political debate over the issue of abortion.
Jammer has reservations about his orders as a member of the New Caprica Police: arrest hundreds of suspected human insurgents, among them his friend Cally.
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.
Having located the legendary planet Kobol, a group of Raptors jumps within range of the planet... and straight into a swarm of Cylon Raiders.
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.
Download the TV Guide app for iPhone, iPad and Android!