Battlestar Galactica poster

TV series

Battlestar Galactica

2004TV-144 seasons8.2 / 10

So say we all!

When an old enemy, the Cylons, resurface and obliterate the 12 colonies, the crew of the aged Galactica protect a small civilian fleet - the last of humanity - as they journey toward the fabled 13th colony, Earth.

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Where to watch in United States

Checked Sep 2, 2026

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Synopsis

When an old enemy, the Cylons, resurface and obliterate the 12 colonies, the crew of the aged Galactica protect a small civilian fleet - the last of humanity - as they journey toward the fabled 13th colony, Earth.

Season 1 episodes

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Episode 1

33

45m8.2 / 10

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.

Episode credits

Directed by Michael RymerWritten by Ronald D. MooreGuest stars Alonso Oyarzun, Sam Witwer, Nicki Clyne

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Episode 2

Water

44m7.6 / 10

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.

Episode credits

Directed by Rod Hardy, Marita GrabiakWritten by Ronald D. MooreGuest stars Sam Witwer, Nicki Clyne

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Episode 3

Bastille Day

44m7.4 / 10

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".

Episode credits

Directed by Allan KroekerWritten by Toni GraphiaGuest stars Connor Widdows, Adrien Dorval, Ron Selmour, Brent Stait, Graham Young, Colby Johannson, Alonso Oyarzun, Curtis Ricks

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Episode 4

Act of Contrition

44m7.6 / 10

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.

Episode credits

Directed by Rod HardyWritten by David Weddle, Bradley ThompsonGuest stars Jill Teed, Terry Chen, Colby Johannson, Lorena Gale, Sam Witwer, Luciana Carro, Tobias Mehler, Donnelly Rhodes

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Episode 5

You Can't Go Home Again

44m7.7 / 10

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.

Episode credits

Directed by Sergio Mimica-GezzanWritten by Carla RobinsonGuest stars Alonso Oyarzun, Sam Witwer, Donnelly Rhodes, Bodie Olmos

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Episode 6

Litmus

44m7.5 / 10

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.

Episode credits

Directed by Rod HardyWritten by Jeff VlamingGuest stars Jill Teed, Nimet Kanji, Shaw Madson, Morris Chapdelaine, Alonso Oyarzun, Biski Gugushe, Charles Singh, Nicki Clyne

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Episode 7

Six Degrees of Separation

44m7.5 / 10

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.

Episode credits

Directed by Robert M. YoungWritten by Michael AngeliGuest stars Biski Gugushe, Nicki Clyne, Christina Schild, Donnelly Rhodes

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Episode 8

Flesh and Bone

44m7.9 / 10

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 planted a nuclear device on one of the ships. Although she doesn't believe it, Kara passes on the warning.

Episode credits

Directed by Brad TurnerWritten by Toni GraphiaGuest stars Callum Keith Rennie, Eric Breker, Biski Gugushe, Christina Schild, Matthew Bennett

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Episode 9

Tigh Me Up, Tigh Me Down

44m7.4 / 10

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.

Episode credits

Directed by Jonas Pate, Edward James OlmosWritten by Jeff VlamingGuest stars Kate Vernon, Axel Green, Richard Hatch, Matthew Bennett

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Episode 10

The Hand of God

44m8.1 / 10

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.

Episode credits

Directed by Jeff Woolnough, Michael RymerWritten by David Weddle, Bradley ThompsonGuest stars Terry Chen, Lorena Gale, Paul Cummings, Camille Sullivan, Cailin Stadnyk, Biski Gugushe, Nicki Clyne, Luciana Carro

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Episode 11

Colonial Day

44m7.6 / 10

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.

Episode credits

Directed by Jonas PateWritten by Carla RobinsonGuest stars Kate Vernon, Robert Wisden, Patrick Gallagher, Alex Zahara, Cailin Stadnyk, Mario Battista, James Ashcroft, Biski Gugushe

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Episode 12

Kobol's Last Gleaming (1)

44m8.1 / 10

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.

Episode credits

Directed by Michael RymerWritten by David Eick, Ronald D. MooreGuest stars Stephen Spender, Lorena Gale, Alonso Oyarzun, Jamie Bell, Sam Witwer, Nicki Clyne, Donnelly Rhodes, Bodie Olmos

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Episode 13

Kobol's Last Gleaming (2)

44m8.7 / 10finale

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.

Episode credits

Directed by Michael RymerWritten by David Eick, Ronald D. MooreGuest stars Warren Christie, Lorena Gale, Jim Shield, Alonso Oyarzun, Sam Witwer, Nicki Clyne, Jen Halley, Leah Cairns

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Episode information updated Sep 17, 2026

More about Battlestar Galactica

Cast

Edward James OlmosAdmiral William Adama
Mary McDonnellLaura Roslin
Jamie BamberLee 'Apollo' Adama
Katee SackhoffKara 'Starbuck' Thrace
James CallisGaius Baltar
Tricia HelferNumber Six
Tahmoh PenikettKarl 'Helo' Agathon
Grace ParkSharon 'Boomer' Valerii

Credits

Created by
Glen A. Larson, Ronald D. Moore
Written by
Carla Robinson, David Weddle, Bradley Thompson, Ronald D. Moore, Mark Verheiden, Michael Angeli

Production details

Status
Ended
Series type
Scripted
Episodes
73
Original language
English

Networks & production

  • SyfyUnited States
  • David Eick Productions
  • R&D TV
  • Universal TelevisionUnited States
  • Universal Media StudiosUnited States
  • UCPUnited States

Themes

alien planetartificial intelligence (a.i.)battlestar galacticacyberneticcyborginspirationalinvasionreboot