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Season guide

Battlestar Galactica: Season 1

13 episodes Premiered Oct 18, 2004 Updated Jul 20, 2026

Season 1 of the 2004 re‑imagined Battlestar Galactica continues directly from the three‑hour miniseries that aired in December 2003. After a losing engagement with the Cylons, the surviving humans are forced to abandon the devastated Twelve Colonies and flee aboard the last remaining warship, the aging Battlestar Galactica, together with a civilian fleet. Under the leadership of Commander William Adama and President

Season overview

Season 1 of the 2004 re‑imagined Battlestar Galactica continues directly from the three‑hour miniseries that aired in December 2003. After a losing engagement with the Cylons, the surviving humans are forced to abandon the devastated Twelve Colonies and flee aboard the last remaining warship, the aging Battlestar Galactica, together with a civilian fleet. Under the leadership of Commander William Adama and President Laura Roslin, the fleet is pursued by the Cylons, some of whom now appear in human

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Episodes

S1·E1

33

Oct 18, 2004 · 45 min

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

S1·E2

Water

Oct 25, 2004 · 44 min

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 tank

S1·E3

Bastille Day

Nov 1, 2004 · 44 min

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 A

S1·E4

Act of Contrition

Nov 8, 2004 · 44 min

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 w

S1·E5

You Can't Go Home Again

Nov 15, 2004 · 44 min

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 adm

S1·E6

Litmus

Nov 22, 2004 · 44 min

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 peopl

S1·E7

Six Degrees of Separation

Nov 29, 2004 · 44 min

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 Go

S1·E8

Flesh and Bone

Dec 6, 2004 · 44 min

A Cylon, who calls himself Leoben, 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 plan

S1·E9

Tigh Me Up, Tigh Me Down

Dec 13, 2004 · 44 min

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 rai

S1·E10

The Hand of God

Jan 3, 2005 · 44 min

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 fue

S1·E11

Colonial Day

Jan 10, 2005 · 44 min

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 Za

S1·E12

Kobol's Last Gleaming (1)

Jan 17, 2005 · 44 min

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

S1·E13

Kobol's Last Gleaming (2)

Jan 24, 2005 · 44 min

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 m