1-1                      18/10/2004                     33

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. Every 33 minutes, they make a jump to a new location. And every 33 minutes, the Cylons manage to find them. The pilots are on the brink of exhaustion, relying on artificial stimulants to keep fighting, and the civilians are beginning to doubt the leadership of Commander Adama and President Roslin.  When the Olympic Carrier, a commercial passenger ship, fails to make a jump and then later mysteriously turns up unharmed, Adama fears it has been infiltrated by the Cylons. His choice: destroy it and the 1,300 souls it might still be carrying, or risk the annihilation of the entire fleet. Adama is not alone in fearing the mystery ship. Baltar, who remains mentally connected with his beautiful and deadly Cylon companion Number Six, panics when he learns one of the ship's passengers has information about a traitor in the president's inner circle.  Meanwhile, down on the ruined, Cylon-occupied colony of Caprica, Helo is on the run from another group of Cylons. He's going to need help to make it back to the Galactica — but there's no help in sight….

1-2                      25/10/2004                     Water

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. Sharon can't remember a thing, but all the evidence points to her as a saboteur. She confesses her concern to Chief Tyrol, but he can't believe she's responsible.  As water riots erupt, Commander Adama and President Roslin struggle to contain the crisis, putting all the ships on limited rations and assigning Baltar the job of rooting out any Cylons who may have infiltrated the crew.  Meanwhile, on Cylon-occupied Caprica, another avatar of Sharon struggles to save Helo, her stranded Raptor crewmate.

1-3                      01/11/2004                     Bastille Day

The fleet has found a source of water, but who will take on the difficult and dangerous job of mining it from the icy planet? Commander Adama and President Roslin send Lee to the Astral Queen, a prisoner transport ship, with an offer for its inmates: Volunteer for this mission and earn "freedom points."  The prisoners not only reject the offer but stage a uprising and hold Lee and his crew hostage. Their leader is Tom Zarek, a freedom fighter convicted of terrorism 20 years earlier. Zarek demands that Roslin step down as president and call for immediate elections to choose a new leader.  While Adama and Roslin organize an assault on the ship, Lee, who read Zarek's radical manifesto while at college, negotiates with his captor. Back on the Galactica, Adama pressures Baltar to develop a device that can distinguish Cylons from humans.  Many light-years away on Caprica, Sharon and Helo struggle to evade the Cylons, unaware that they are being observed by Doral and Number Six.

1-4                      08/11/2004                     Act of Contrition

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.  The assignment brings back painful memories for Kara. She can't forget how she let Zak — Commander Adama's son and her lover — pass Basic Flight when he wasn't ready, and how it ultimately cost him his life. Determined never to repeat the mistake, she flunks out the would-be pilots on their first day.  She is immediately confronted, first by Lee, then by Adama, and forced to admit to the Commander her role in Zak's death. Adama orders her to continue training the "nuggets." Meanwhile, Sgt. Hadrian continues her investigation into the detonators found in Sharon's spacecraft, and President Roslin consults the ship's doctor about her cancer.  Far away on Cylon-occupied Caprica, Sharon and Helo find a secret cache of food.

1-5                      15/11/2004                     You Can't Go Home Again

When Lt. Kara Thrace goes missing in action after encountering a Cylon patrol while on a training mission, Commander Adama feels responsible — especially in light of her recent admission that she blames herself for his son Zak's death.  Both Adama and Lee devote the full resources of the fleet to search for their missing fighter ace, causing some to wonder if it's worth risking the lives of 45,000 people to save one downed pilot. When President Roslin questions their motives and points out that Kara's oxygen was exhausted hours ago, they reluctantly call off the search.  But they haven't counted on Kara's resourcefulness and courage. Stranded on a red moon, her knee a twisted wreck, she struggles to relaunch a damaged Cylon fighter and return to Galactica.

1-6                      22/11/2004                     Litmus

When a new copy of Doral, a Cylon who had been previously exposed while serving as the Galactica's public-relations officer, sneaks aboard and blows himself up, killing three people, Commander Adama and President Roslin must finally make public the terrifying secret known only to a select few: Cylons now look like humans.  Adama also appoints an independent tribunal to investigate the recent security breaches and names Sgt. Hadrian as lead investigator. When Hadrian discovers a hatch was left open, even after Chief Tyrol had reported that all were closed, she focuses the investigation on him and his relationship with Sharon.  Tyrol's crew covers for their chief, taking the blame for his failure. When Hadrian tries to expand the inquiry, haranguing Adama about his decision not to reveal the truth about Cylons, the commander shuts down the tribunal.  Meanwhile, on Caprica, a trio of Cylons observe Helo as he tries to save himself and find the woman he thinks is Sharon.

1-7                      29/11/2004                     Six Degrees of Separation

When Baltar and the Number Six who lives in his head have a falling out, she abandons him, only to surface a short while later aboard the Galactica. But now she's called Shelley Godfrey, everyone can see her, and she's telling them that she has evidence, passed on by the late Dr. Amarak, that will prove Baltar sold out the human race to the Cylons.  With Baltar in a panic and trying to save himself, Number Six focuses her charms on Commander Adama. But the Commander is wary of this stunning stranger and has her followed while her evidence is analyzed.  Kara struggles to recover from her injuries while Chief Tyrol and the crew try to reverse-engineer the Cylon raider she piloted home.  Meanwhile, dual Sharons face their own challenges — on Caprica, she and Helo are on the run from Cylon centurions; on the Galactica, she's terrified of being exposed as a Cylon herself.

1-8                      06/12/2004                     Flesh and Bone

A Cylon, who calls himself Leobon, is discovered on one of the ships in the fleet. Commander Adama sends Kara to interrogate him — or, rather, it. The Cylon tells Kara that he planted a nuclear device on one of the ships. Although she doesn't believe it, Kara passes on the warning.  As her colleagues search for the device, Kara engages Leobon in a battle of wills. Theological debates about souls and the humanity of Cylons lead to mind games, threats, and, ultimately, torture. Taking a personal interest in what Leobon has to say, President Roslin joins the interrogation.  On Galactica, Sharon asks Baltar to try out his new Cylon-detecting technology on her.  Meanwhile, on far-off Caprica, another Sharon conspires with her Cylon associates Doral and Number Six to convince Helo to remain on the planet and start a new life.

1-9                      13/12/2004                     Tigh Me Up, Tigh Me Down

President Roslin's fears that Commander Adama is a Cylon are stoked when she learns he's making secret wireless calls to other ships. Then, to make things worse, a single Cylon raider appears near the Galactica and begins acting strangely after being damaged in battle.  When Adama returns to the ship with Tigh's wife, Ellen, an earthy temptress and irrepressible flirt who claims to have been in a coma since their civilization was destroyed, Roslin's suspicions increase. She orders Baltar to screen both Ellen and Adama with his newly completed Cylon-detector.  Meanwhile, Col. Tigh and the rest of the crew watch warily and gather data as the wounded Cylon raider jumps in and out of space.  On Caprica, the Cylon overseers fear that the Cylon Sharon is developing a strange feeling toward Helo — love.

1-10                    03/01/2004                     The Hand of God

As its fuel supply dwindles, the fleet must seek out a new supply of tylium ore or risk becoming sitting ducks to any Cylon attack. A recon patrol finds an asteroid full of the fuel, but there's a catch — the Cylons have found it first and established a heavily guarded refining plant.  Kara devises a plan: Jump three decoy ships near the asteroid; when the Cylons attack, destroy their bases, leaving them stranded in space. It's a bold tactic, but it will take luck, skill and daring to pull it off.  Meanwhile, President Roslin begins to hallucinate as a result of the Chamalla she's taking to combat her breast cancer. When she consults Elosha, a priestess who has used Chamalla to induce visions, she learns that her circumstances fulfill a 3,600-year-old prophecy.  On Cylon-occupied Caprica, Sharon and Helo's flight from the Cylon overseers suddenly becomes more complicated when Sharon discovers she's pregnant.

1-11                    10/01/2004                     Colonial Day

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. Tom Zarek, the charismatic convicted terrorist, is elected as the delegate from Sagittaron and immediately proposes elections for the vice-presidency.  Roslin encourages her trusted adviser, Wallace Gray, to run against Zarek, but when he proves less than popular, she turns to the suddenly popular Baltar as her candidate.  Meanwhile, two shady and heavily armed characters, Grimes and Vallance, have infiltrated the Quorum site. Lee and Kara foil the assassins' plot, but then Vallance mysteriously dies in custody.  Light-years away, on Cylon-occupied Caprica, Sharon must make an impossible choice — if she is to save Helo's life, she must finally reveal to him that she is a Cylon.

1-12                    17/01/2004                     Kobol's Last Gleaming (Part 1)

1-13                    24/01/2004                     Kobol's Last Gleaming (Part 2)

While flying a supply patrol, Crashdown and Sharon Valerii discover a bountiful planet that can support human life. Indeed, it might be Kobol, the legendary "home of the gods." The discovery prompts Commander Adama to send a ground team to investigate; it also gives new life to President Roslin's belief that she is a tool of destiny and that this discovery, like her rapidly spreading cancer, is part of an ancient prophecy.  However, things are not well on the Galactica. Gaius Baltar, the new vice-president, has a one-night stand with Kara Thrace and finds himself at odds with both Lee Adama and a deeply jealous Number Six.  Meanwhile, both Cylon Sharons struggle with their dual natures. On Galactica, she contemplates suicide when she realizes her programming will lead her to betray her comrades; on Caprica, she tries to convince Helo that her love for him is stronger than her loyalty to the Cylons.  After a Raptor carrying Vice-President Baltar is shot down over Kobol, Commander Adama must find a way to destroy the Cylon basestar that guards the planet before he can send a rescue team. He orders Kara to fly a dangerous mission against the basestar, using the captured Cylon Raider — but Kara makes an unauthorized Jump home to Caprica instead, abandoning Adama and the stranded Raptor crew.  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. Roslin refuses his demand and sparks a confrontation.  As civil war simmers in the fleet, the conflict on Caprica heats up. Kara completes her mission for Laura: She finds the Arrow of Apollo that, according to prophecy, will lead the fleet to Earth. No sooner does she pick it up, however, than she is thrust into a battle to the death with Number Six.  Meanwhile, Adama sends Sharon and Racetrack in a Raptor equipped with a Cylon transponder, to fire a nuclear warhead that will destroy the basestar. But when the missile release jams, Sharon lands the Raptor deep inside the basestar, to deliver the warhead manually.  Once outside her ship, however, Sharon is greeted by dozens of Sharon avatars, all Cylons like her, welcoming her home. She retreats, but is told that she and her fellow Cylons will meet again. She and Racetrack escape the basestar, which explodes.  Mission accomplished, Sharon returns home to the Galactica. She warmly accepts Commander Adama's thanks and praise for a job well done — then she coldly shoots him, point-blank, in the chest.