Commander Adama returns to a hero's welcome and an unenviable task: in order to maintain control of the fleet, he must track down his son, Lee, and President Roslin, who have escaped.
With more than a third of the fleet split from Galactica, Adama admits that there is no substitute for the people he has lost, and resolves to find them.
Baltar is accused of treason, by none other than Number Six (posing as someone else). As the Galactica crew investigates the matter, Baltar is left to ponder his fate - and his own place in the world.
A suicide bomber detonates himself aboard Galactica but when the insurgent is revealed to be a human-like Cylon, rumour of such a thing becomes hard reality.
Lt. Sharon Valerii wakes up soaking wet in the tool room with an explosive charge in her duffel bag. Shortly afterward, a mysterious explosion destroys all the port-side water tanks on Galactica, creating a crisis for the entire fleet.
After a flight deck accident kills 13 pilots and wounds many others, Kara is thrust into service as a flight instructor and ordered to turn a group of civilian pilots and academy washouts into full-fledged Viper pilots.
Continues on from the events of Battlestar Galactica: The Miniseries. In the wake of the Cylon sneak attack, the ragtag fleet of human survivors is forced to play a deadly game of cat-and-mouse with their pursuers.
When President Roslin calls an Interim Quorum of the Twelve Colonies, she discovers that democracy brings its ugly stepsisters - politics and deadly intrigue - to the party.
When Commander Adama learns that Kara disobeyed orders and jumped to Caprica on orders from President Roslin, he demands the president's resignation, with the implied threat of a military coup.
Unable to move on after the events on Earth, Kara Thrace is still plagued by nightmares. She finds solace in Joe's Bar where a nameless piano player plays music strangely attuned to her pain.
Humans and Cylons have begun working together to repair the Galactica using Cylon resin. But Ellen Tigh's unexpected return causes a rift in the current unity of both races.
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.
With Commander Adama fighting for his life and President Roslin languishing in the Galactica's brig, Col. Tigh is thrust into the unfamiliar role of sole leader in a time of crisis.
The Galactica has succeeded in reuniting with the fleet, but it has paid a terrible price: a Cylon computer virus has penetrated its computers, robbing the ship of power, and Cylon Centurions have boarded the Galactica.
Wartime atrocities dating back to the first Cylon war, and others more recent, haunt Admiral William Adama, young Battlestar Pegasus officer Kendra Shaw, and her mentor Admiral Helena Cain.
Wartime atrocities dating back to the first Cylon war, and others more recent, haunt Admiral William Adama, young Battlestar Pegasus officer Kendra Shaw, and her mentor Admiral Helena Cain.
The thin line that separates humanity from the rapidly evolving Cylons is redrawn as Starbuck returns from the dead with claims that she has found planet Earth.
Galactica's top gun, Kara Thrace, finds herself on the edge of a nervous breakdown as she battles the emotional fallout from her captivity on New Caprica.
A rank-free boxing tournament aboard the Galactica is intended to help the officers and crew blow off steam, but it quickly drags old grudges into the light - including Apollo and Starbuck's lingering issues and resentments.
Admiral Adama must confront the darkest moment of his military career when a pilot, believed killed years ago during a secret mission under Adama's command, escapes from Cylon custody and arrives on the Galactica.
As Adama and Laura debate using biological weapons against the Cylons, Baltar is being tortured by D'Anna, intent on determining who is responsible for the virus.
While harvesting algae on the planet beyond the star cluster, the possible discovery of an ancient artefact known as "the Eye of Jupiter" leads to a deadly stand-off with the Cylons.
Conflicts flare among the Cylons as they confront the taboo mystery of the Final Five and Kara Thrace is pushed too far when her former friends and comrades refuse to believe that she has been to Earth.
After an accident nearly kills President Roslin, Chief Tyrol defies Admiral Adama to demand safer working conditions throughout the fleet - and inadvertently makes himself the rallying point for a strike.
Weeks without Cylon contact has the Galactica crew breathing easy. As Admiral Adama reflects on the life he's lost, below decks a tragedy unfolds as Tyrol and Cally get stuck on the wrong side on an airlock, with their air leaking away.
Gaius Baltar sows unrest and violence in the fleet by promoting belief in the Cylon god. Meanwhile, the four secret Cylons on the Galactica clash over how far they should go to keep their mutual secret.
While Kara Thrace commands a lone freighter in her desperate search for Earth, political intrigue and marital discord aboard the Galactica are paralleled by deep rifts in the Cylons' solidarity.
After the startling revelations, 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.