Laura and Adama face the possibility that one of their ships has been infiltrated by the enemy.
Water
Episode 243 mins
Boomer worries that she is responsible for an explosion that causes Galactica to lose water.
Bastille Day
Episode 343 mins
Apollo is held hostage on a prisoner ship by a group of convicts led by a freedom fighter.
Act of Contrition
Episode 443 mins
Starbuck is forced to admit her role in the death of Adama's son, Zak.
You Can't Go Home Again
Episode 543 mins
Adama and Lee put the fleet at risk while searching for Kara.
Litmus
Episode 643 mins
When a Cylon suicide bomber kills three, Adama must reveal to the public that Cylons now look human.
Six Degrees of Separation
Episode 743 mins
Baltar faces death and dishonor when a disguised Number Six accuses him of being a traitor.
Flesh and Bone
Episode 843 mins
When a Cylon is discovered on one of the ships, Adama sends Kara to interrogate the machine.
Tigh Me Up, Tigh Me Down
Episode 943 mins
President Laura Roslin fears that Commander Adama might be a Cylon.
The Hand of God
Episode 1043 mins
When fuel supplies dwindle, the fleet must make an attack on a Cylon-controlled tylium mine.
Colonial Day
Episode 1143 mins
The return of democracy to the fleet.
Kobol's Last Gleaming
Episode 1243 mins
A supply patrol discovers a hospitable planet.
Kobol's Last Gleaming
Episode 1343 mins
As the fleet prepares to battle the Cylons, tensions between Adama and Laura explode.
Scattered
Episode 143 mins
With Adama wounded and Laura Roslin in the brig, Tigh faces his first test of leadership.
Valley of Darkness
Episode 243 mins
Tigh must work with Lee to defeat a Cylon boarding party that threatens to take over Galactica.
Fragged
Episode 343 mins
The return of democracy to the fleet brings hardball politics and potentially deadly intrigue.
Resistance
Episode 443 mins
Tigh's imposition of martial law threatens to split the fleet.
The Farm
Episode 543 mins
Adama returns to duty.
Home Pt. I
Episode 643 mins
Adama wrestles with his son's betrayal; President Roslin puts her trust in a Cylon.
Home Pt. II
Episode 743 mins
Adama launches a search mission.
Final Cut
Episode 843 mins
A reporter is invited aboard Galactica.
Flight of the Phoenix
Episode 943 mins
Sharon's loyalties are questioned when a computer virus penetrates Galactica's operating systems.
Pegasus
Episode 1045 mins
The appearance of a superior colonial battlestar is cause for celebration aboard Galactica.
Resurrection Ship
Episode 1143 mins
Teams try to join forces.
Resurrection Ship
Episode 1243 mins
Battlestar Galactica and Pegasus battle to destroy the Cylon resurrection ship.
Epiphanies
Episode 1343 mins
Roslin flashes back.
Black Market
Episode 1443 mins
President Roslin tries to end black-market trading.
Scar
Episode 1544 mins
Galactica's Viper pilots are called upon to protect a Colonial mining operation.
Sacrifice
Episode 1644 mins
A civilian holds military and government personnel hostage.
The Captain's Hand
Episode 1743 mins
Battlestar Pegasus deals with internal crisis and external threat.
Downloaded
Episode 1843 mins
Number Six and Sharon become heroes of the Cylon.
Lay Down Your Burdens
Episode 1943 mins
Lay Down Your Burdens, Pt 1: The accidental discovery of a habitable planet swings the election in Baltar's favor, while Starbuck's rescue mission to Caprica runs into unexpected trouble. Edward James Olmos, Mary McDonnell.
Lay Down Your Burdens
Episode 2067 mins
Laura must choose between stealing the election and allowing Baltar to win.
Occupation
Episode 145 mins
Humans find various ways of living under Cylon rule on New Caprica; Adama plans a rescue mission.
Precipice
Episode 245 mins
The Cylons crack down on the humans after a bombing.
Exodus, Part 1
Episode 343 mins
Adama prepares to rescue the human population on New Caprica.
Exodus, Part 2
Episode 443 mins
Adama prepares to rescue the human population on New Caprica.
Collaborators
Episode 543 mins
A secret jury forms aboard Galactica to pass judgment on those who collaborated with the Cylons.
Torn
Episode 643 mins
A deadly virus forces the Cylons to make terrible choices to protect their race.
A Measure of Salvation
Episode 742 mins
D'Anna tortures Baltar to find out who is responsible for the virus.
Hero
Episode 845 mins
A pilot escapes from Cylon custody and returns to Galactica.
Unfinished Business
Episode 943 mins
Memories haunt the crew.
The Passage
Episode 1043 mins
The fleet faces starvation.
The Eye of Jupiter
Episode 1143 mins
Stand off between the Cylons and the humans.
Rapture
Episode 1243 mins
The Galactica team must race to find clues to the Earth's location.
Taking a Break From All Your Worries
Episode 1343 mins
Captors interrogate imprisoned ex-President Gaius Baltar aboard Galactica.
The Woman King
Episode 1443 mins
Galactica's medical team struggles to curb an epidemic triggered by Sagitarron refugees.
A Day in the Life
Episode 1543 mins
A pair of crew members are trapped outside in an airlock.
Dirty Hands
Episode 1643 mins
Chief Tyrol's labor leader persuades him to defy Adama and become the rallying point for a strike.
Maelstrom
Episode 1743 mins
Kara Thrace is on the edge of a breakdown.
The Son Also Rises
Episode 1844 mins
Sabotage, dissension and unlikely alliances cause complications.
Crossroads, Part 1
Episode 1944 mins
As the trial of Gaius Baltar begins, testimony rivets the fleet's attention.
Crossroads, Part 2
Episode 2047 mins
Coincidences creates new alliances aboard Galactica.
Razor
Episode 2187 mins
Lee Adama embarks on his first mission as commander of the Battlestar Pegasus.
He That Believeth in Me
Episode 143 mins
Starbuck's mysterious return; Anders has a surprising standoff with a Cylon raider.
Six of One
Episode 243 mins
The Cylons confront the taboo mystery of the Final Five; Kara is pushed too far.
The Ties That Bind
Episode 343 mins
Political intrigue and marital discord-rifts in the Cylons' solidarity.
Escape Velocity
Episode 443 mins
Baltar's beliefs become a controversy; a crew member's demise casts a pall on the Colonials.
The Road Less Traveled
Episode 543 mins
Starbuck is inspired by the truce between humanity and rebel Cylons to trust her old enemy, Leoben.
Faith
Episode 643 mins
Helo refuses to obey Starbuck's orders; President Roslin relies on her aide.
Guess What's Coming to Dinner?
Episode 743 mins
The Galactica helps destroy a vital enemy target, testing a new alliance.
Sine Qua Non
Episode 843 mins
A power struggle emerges when President Roslin is abducted by the Cylon Hybrid.
Hub
Episode 944 mins
A team of Viper pilots and Cylon rebels formulate a battle plan.
Revelations
Episode 1043 mins
The rebel Cylons hold President Roslin hostage.
Sometimes a Great Notion
Episode 1146 mins
The fleet and its Cylon allies unite in a search for Earth.
A Disquiet Follows My Soul
Episode 1243 mins
Adama's proposal for an alliance and a habitable space is met with fierce resistance.
The Oath
Episode 1343 mins
Gaeta and Zarek execute a power grab the puts Adama and Tigh on the defensive.
Blood on the Scales
Episode 1443 mins
Rebels seize control of Galactica and take steps to eliminate Roslin and Adama.
No Exit
Episode 1543 mins
Ellen Tigh resurfaces; Anders tells Kara that he remembers everything.
Deadlock
Episode 1643 mins
The survivors desperately search for the fabled 13th colony, Earth.
Someone to Watch Over Me
Episode 1743 mins
Thrace plays piano in a bar; Boomer faces extradition; Tyrol realizes Boomer tricked him.
Islanded in a Stream of Stars
Episode 1843 mins
The ship continues to deteriorate as repairs continue; Hera is delivered to Cavil.
Daybreak, Part 1
Episode 1943 mins
As the Galactica is stripped for parts, a call for volunteers is made for a final mission.
Daybreak, Part 2
Episode 2043 mins
Admiral Adama leads a group of volunteers into a dangerous mission to rescue Hera.
Daybreak, Part 3
Episode 2143 mins
Events and conflicts reach their climax, and humans and Cylons face a stark decision.
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