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Battlestar Galactica

TV·2003–2009·4 seasons, 73 episodes·Syfy·Drama, Science-Fiction, War·1h 1m·8.7·Created by Glen A. Larson, Ronald D. Moore

Streaming on (US) Paramount Plus PremiumSee all

The world ended with no warning, and all that was left… was hope.

A truce between the humans of the Twelve Colonies and the Cylons—intelligent robots designed by humankind—lasts for 40 tense and silent years. Battlestar Galactica picks up just as the Cylons commit mass genocide against humanity. Only the Battlestar Galactica (an old warship about to be decommissioned and turned into a museum) and those souls fortunate enough to be aboard other starships were able to survive the attack. In the aftermath, the Galactica's commanding officer, William Adama, finds himself responsible for safeguarding the last remnants of the human race—fewer than 50,000 desperate survivors. Meanwhile, the annihilation of the Colonial government results in the succession of the Secretary of Education, Laura Roslin, to the presidency. Driven by prophetic visions and political necessity, the Galactica travels through uncharted space in hopes of finding the mythical, lost 13th colony—Earth.

Highest-rated episodes all ranked

  1. 01Battlestar Galactica S04E20Daybreak, Part 2S04E20 · 9.5A stripped down Galactica attacks the Cylon's Colony ship in the hopes of rescuing Hera. The meaning of the shared dream in the Opera House on Kobol is revealed. Sam Anders is moved in his Hybrid tank to the CIC in the hopes that he will be able to assist the combatants.
  2. 02Battlestar Galactica S03E20Crossroads, Part 2S03E20 · 9.4Coincidences creates new alliances aboard Galactica. The identities of the final five are revealed.
  3. 03Battlestar Galactica S02E20Lay Down Your Burdens, Part 2S02E20 · 9.3The group on Caprica is under fire by the Cylons, but suddenly they stop. When Baltar wins the vote, Roslin considers stealing the election because she believes he is a Cylon collaborator.

Castfull cast & details

Episodes by season

Season01Episode ratings across the season — the gold bar is its best episode13Episodes2005Aired 8.2Season avg
  1. S01E01Battlestar Galactica S01E0133January 14, 2005 8.3The crew of Galactica is exhausted after 237 consecutive jumps in intervals of 33 minutes and 132.25 hour without sleep to escape from the C
  2. S01E02Battlestar Galactica S01E02WaterJanuary 14, 2005 7.7President Roslin arrives on Galactica as Boomer's Cylon side asserts itself, forcing her to sabotage Galactica's water supply against her wi
  3. S01E03Battlestar Galactica S01E03Bastille DayJanuary 21, 2005 7.8Deciding to use the thousand prisoners on a prison transport ship to mine the ice on the planet they've found, Galactica's plans are upset w
  4. S01E04Battlestar Galactica S01E04Act of ContritionJanuary 28, 2005 7.9There's a party on Galactica's flight deck as Flat-Top just had his thousandth landing. Something goes terribly wrong however when a drone a
  5. S01E05Battlestar Galactica S01E05You Can't Go Home AgainFebruary 4, 2005 8.4Starbuck has been shot down over a barren moon, and must be rescued before she runs out of oxygen. Adama become obsessed with trying to save
  6. S01E06Battlestar Galactica S01E06LitmusFebruary 11, 2005 8.4A humanoid Cylon straps himself with explosives and commits a suicide bombing in a crowded hallway on Galactica. Roslin and Adama are forced
  7. S01E07Battlestar Galactica S01E07Six Degrees of SeparationFebruary 18, 2005 8.1After Baltar has an argument with the vision of Number Six he sees in his head, a physical copy of Cylon model Number Six shows up in Galact
  8. S01E08Battlestar Galactica S01E08Flesh and BoneFebruary 25, 2005 8.0A humanoid Cylon is captured in the fleet, a copy of the Leoben model, who claims that he has planted a nuclear bomb in the Fleet before he
  9. S01E09Battlestar Galactica S01E09Tigh Me Up, Tigh Me DownMarch 4, 2005 7.9After the interrogated Cylon gave Roslin the idea that Adama might be a Cylon, Roslin becomes suspicious of him. Unexpectedly, Colonel Tigh'
  10. S01E10Battlestar Galactica S01E10The Hand of GodMarch 11, 2005 8.6The fleet is running out of tylium fuel and will soon not have enough to keep running from the Cylons, when they find an asteroid with sever
  11. S01E11Battlestar Galactica S01E11Colonial DayMarch 18, 2005 7.9President Roslin has rebuilt a new Quorum of Twelve, the legislative branch of the government, but terrorist leader/political dissident Tom
  12. S01E12Battlestar Galactica S01E12Kobol's Last Gleaming, Part 1March 25, 2005 8.8Galactica stumbles upon Kobol, the long-lost home world of humanity that the 13 Tribes came from, which legend says holds the only clues to
  13. S01E13Battlestar Galactica S01E13Season's bestKobol's Last Gleaming, Part 2April 1, 2005 9.2Infuriated that Roslin usurped his command by ordering Starbuck to steal the captured Raider, Adama decides that his only option is to storm

Season 1 ranked & reviewed

Season02Best seasonEpisode ratings across the season — the gold bar is its best episode20Episodes2005–06Aired 8.5Season avg
  1. S02E01Battlestar Galactica S02E01ScatteredJuly 15, 2005 8.6As the premiere for the second season unfolds, Adama lay dying leaving Tigh in command. Lee and Roslin have been sent to the brig. An emerge
  2. S02E02Battlestar Galactica S02E02Valley of DarknessJuly 22, 2005 8.4Tigh has to work with Lee to defeat a Cylon boarding party that threatens to take over Galactica and destroy the fleet.
  3. S02E03Battlestar Galactica S02E03FraggedJuly 29, 2005 8.2Tigh has problems with the responsibility of being a leader, president Roslin loses control without chamalla. The Kobol team discovers a Cyl
  4. S02E04Battlestar Galactica S02E04ResistanceAugust 5, 2005 8.5Tigh imposes martial law and threatens to split the fleet as Lee works to free President Roslin and organize democratic resistance. On Capri
  5. S02E05Battlestar Galactica S02E05The FarmAugust 12, 2005 8.4Starbuck finds herself wounded in a hospital on Caprica where she is suspicious about her doctor. President Roslin makes an appeal to the fl
  6. S02E06Battlestar Galactica S02E06Home, Part 1August 19, 2005 8.4Starbuck, Helo and Boomer bring back the Arrow of Apollo, but Boomer doesn't seem welcome. Commander Adama wants to keep the fleet divided a
  7. S02E07Battlestar Galactica S02E07Home, Part 2August 26, 2005 8.7While Commander Adama tries to join Roslin's team on Kobol, Dr. Baltar's Number Six tells him he's crazy.
  8. S02E08Battlestar Galactica S02E08Final CutSeptember 9, 2005 8.3Journalist D'Anna Biers is making an item on the Gideon incident, when she's asked by Adama and Roslin to film daily life on Galactica.
  9. S02E09Battlestar Galactica S02E09Flight of the PhoenixSeptember 16, 2005 8.6Sharon informs Adama that the Galatica has been infected with a computer virus that is tampering with the basic ship functions and is scanni
  10. S02E10Battlestar Galactica S02E10PegasusSeptember 23, 2005 8.7Gallactica meets Pegasus, and Adama's command is threatened when the captain of Pegasus outranks him. A joyous celebration turns sour at som
  11. S02E11Battlestar Galactica S02E11Resurrection Ship, Part 1January 6, 2006 8.6Adama and Cain find common ground when Starbuck returns with footage of the new Cylon target, a "Resurrection" ship. Roslin negotiates a tem
  12. S02E12Battlestar Galactica S02E12Resurrection Ship, Part 2January 13, 2006 8.8The struggle between Adama and Cain is temporarily put on hold while the two Battlestars combine forces for an assault on the Cylon Resurrec
  13. S02E13Battlestar Galactica S02E13EpiphaniesJanuary 20, 2006 8.3President Roslin, who is about to die, believes Sharon's baby is dangerous and orders it must die. Meanwhile, a terrorist group inside the f
  14. S02E14Battlestar Galactica S02E14Black MarketJanuary 27, 2006 7.3Apollo investigates the murder of one of the crew and falls for a young prostitute, whom he vows to save from the rogue ship dealing with th
  15. S02E15Battlestar Galactica S02E15ScarFebruary 3, 2006 8.3This is an episode about loss. Kat and Starbuck confront each other about their piloting skills and each vow to kill a crazed Cylon Raider w
  16. S02E16Battlestar Galactica S02E16SacrificeFebruary 10, 2006 8.3A terrorist attacks and holds several key people hostage and threatens to murder them unless she is given the Cylon prisoner.
  17. S02E17Battlestar Galactica S02E17The Captain's HandFebruary 17, 2006 8.7Two of Pegasus' raptors go missing after a suspicious distress call. President Roslin must make a decision on abortion that could hurt her p
  18. S02E18Battlestar Galactica S02E18DownloadedFebruary 24, 2006 8.8The Cylon baby is finally born, leading to some political decisions being made. Meanwhile, the Cylons on Caprica contemplate life and humans
  19. S02E19Battlestar Galactica S02E19Lay Down Your Burdens, Part 1March 3, 2006 8.3Chief Tyrol is plagued by terrifying dreams and seeks the aid of a priest, Starbuck is planning a mission to rescue Anders from Caprica. Ros
  20. S02E20Battlestar Galactica S02E20Season's bestLay Down Your Burdens, Part 2March 10, 2006 9.3The group on Caprica is under fire by the Cylons, but suddenly they stop. When Baltar wins the vote, Roslin considers stealing the election

Season 2 ranked & reviewed

Season03Episode ratings across the season — the gold bar is its best episode20Episodes2006–07Aired 8.1Season avg
  1. S03E01Battlestar Galactica S03E01OccupationOctober 6, 2006 8.1The Cylons have now been in control of New Caprica for over four months. Gaius Baltar is under their collective thumbs and essentially follo
  2. S03E02Battlestar Galactica S03E02PrecipiceOctober 6, 2006 8.1As a result of the most recent suicide bombings, some of the Cylons are now arguing that they need to retaliate. Laura Roslin, among others,
  3. S03E03Battlestar Galactica S03E03Exodus, Part 1October 13, 2006 8.3The secret source in the administration has provided Tyrol with a list of all humans scheduled for extermination. Tyrol's wife Cally is on t
  4. S03E04Battlestar Galactica S03E04Exodus, Part 2October 20, 2006 8.5The attack to rescue everyone on New Caprica begins. The Galactica encounters four rather than the expected two Cylon Basestars. The end app
  5. S03E05Battlestar Galactica S03E05CollaboratorsOctober 27, 2006 8.0Now safely back in the fleet, those who managed to escape from New Caprica are seeking revenge against those they believe collaborated with
  6. S03E06Battlestar Galactica S03E06TornNovember 3, 2006 8.0Baltar learns from Caprica Six of their ability to project themselves and imagine different surroundings which leads him to wonder if he too
  7. S03E07Battlestar Galactica S03E07A Measure of SalvationNovember 10, 2006 7.8When a group of ill Cylons from the infected Basestar is brought to Galactica, Lee discovers a way to solve the Cylon problem forever - by d
  8. S03E08Battlestar Galactica S03E08HeroNovember 17, 2006 7.7A figure from Adama's past returns to haunt him. His return raises questions about why the Cylons launched their initial attack against the
  9. S03E09Battlestar Galactica S03E09Unfinished BusinessDecember 1, 2006 7.4A look at the events that took place during the year-long gap from the storyline in the Season Two finale. The story reveals the reasons for
  10. S03E10Battlestar Galactica S03E10The PassageDecember 8, 2006 7.8The Colonial fleet faces starvation when the food-processing machines are contaminated. Kat plays a vital role in the success or failure of
  11. S03E11Battlestar Galactica S03E11The Eye of JupiterDecember 15, 2006 8.4The crew of Galactica makes a stop at the barren Algae planet.
  12. S03E12Battlestar Galactica S03E12RaptureJanuary 21, 2007 8.7The Cylons descend upon the re-supply mission as the Chief races to decipher the markings in the temple believed to hold The Eye of Jupiter,
  13. S03E13Battlestar Galactica S03E13Taking a Break from All Your WorriesJanuary 28, 2007 7.9Baltar plays a game of cat and mouse with Adama and the President, thinking they will kill him once they've gotten out of him what they want
  14. S03E14Battlestar Galactica S03E14The Woman KingFebruary 11, 2007 7.5When a group of refugees board Galactica with a curable illness, it becomes very mysterious when they begin to die after taking the injectio
  15. S03E15Battlestar Galactica S03E15A Day in the LifeFebruary 18, 2007 7.7The Chief and his wife get trapped in an airlock on a routine maintenance job, while the Admiral copes with his wedding anniversary and the
  16. S03E16Battlestar Galactica S03E16Dirty HandsFebruary 25, 2007 8.3When the head of the fuel production plant holds the fleet hostage by providing unsafe fuel, he's arrested for treason, which results in the
  17. S03E17Battlestar Galactica S03E17MaelstromMarch 4, 2007 8.5The Admiral is forced to make the decision of whether to ground Kara Thrace when she begins to show signs of an oncoming nervous breakdown.
  18. S03E18Battlestar Galactica S03E18The Son Also RisesMarch 11, 2007 7.8Besides having to deal with the loss of Kara Thrace, the crew of the Galactica is also charged with the security surrounding the trial of Dr
  19. S03E19Battlestar Galactica S03E19Crossroads, Part 1March 18, 2007 8.3Baltar goes on trial for his life, and it affects everyone from Lee on up to the president.
  20. S03E20Battlestar Galactica S03E20Season's bestCrossroads, Part 2March 25, 2007 9.4Coincidences creates new alliances aboard Galactica. The identities of the final five are revealed.

Season 3 ranked & reviewed

Season04Episode ratings across the season — the gold bar is its best episode20Episodes2008–09Aired 8.5Season avg
  1. S04E01Battlestar Galactica S04E01He That Believeth in MeApril 4, 2008 8.3During a seemingly hopeless battle, Kara Thrace appears in a pristine Viper, claiming that she has been to Earth and can lead the Fleet ther
  2. S04E02Battlestar Galactica S04E02Six of OneApril 11, 2008 8.5Starbuck (Katee Sackhoff) and Laura Roslin (Mary McDonnell) face off with a gun between them, Lee Adama (Jamie Bamber) says goodbye to the G
  3. S04E03Battlestar Galactica S04E03The Ties That BindApril 18, 2008 8.0The aftermath of a coup among the Cylons leads to further violence, Lee finds himself facing off against Roslin during his first meeting wit
  4. S04E04Battlestar Galactica S04E04Escape VelocityApril 25, 2008 7.6Gaius Baltar causes intense unrest within the fleet when he begins to openly promote belief in the Cylon god. Colonel Tigh, Galen Tyrol, and
  5. S04E05Battlestar Galactica S04E05The Road Less TraveledMay 2, 2008 8.0When a Heavy-Raider manned by Leoben Conoy docks aboard the Demetrius, confrontations form between the crew over the possibility of a truce
  6. S04E06Battlestar Galactica S04E06FaithMay 9, 2008 8.4A vicious injury ends the mutiny attempt aboard the Demetrius, Kara leads her crew to the Cylon rebel's Basestar, and Roslin begins to under
  7. S04E07Battlestar Galactica S04E07Guess What's Coming to Dinner?May 16, 2008 8.7A shaky alliance between the Colonial Fleet and Cylon rebels is put to the test when the two groups combine efforts to take out a Cylon "Res
  8. S04E08Battlestar Galactica S04E08Sine Qua NonMay 30, 2008 8.0President Roslin's abduction by the Cylon Hybrid triggers a bitter power struggle within the Colonial Fleet.
  9. S04E09Battlestar Galactica S04E09The HubJune 6, 2008 8.6The Hybrid keeps jumping the basestar, and Roslin has visions. The three, D'Anna, is un-boxed. Humans and Cylons engage in a battle to destr
  10. S04E10Battlestar Galactica S04E10RevelationsJune 13, 2008 9.0D'Anna demands that the four Cylons in the fleet be sent to the basestar. Only Tory goes, while the remaining three are suddenly drawn to Ka
  11. S04E11Battlestar Galactica S04E11Sometimes a Great NotionJanuary 16, 2009 8.6Scouting the planet reveals that there is no life except plants. The destruction occurred about 2,000 years earlier. Among the ruins, skelet
  12. S04E12Battlestar Galactica S04E12A Disquiet Follows My SoulJanuary 23, 2009 8.4Adama considers Saul and Tyrol's suggestion that the Fleet should integrate Cylon jump technology since it will triple the distance they wil
  13. S04E13Battlestar Galactica S04E13The OathJanuary 30, 2009 9.0The Fleet refuses to cooperate with Cylon engineers and Adama decides to put and end to it. He sends the Quorum a message stating that unles
  14. S04E14Battlestar Galactica S04E14Blood on the ScalesFebruary 6, 2009 8.9Roslin is on board a raptor en route to the Rebel Cylon Base Star, but Gaeta has ordered to engage and destroy it. The marines have used a s
  15. S04E15Battlestar Galactica S04E15No ExitFebruary 13, 2009 9.0Eighteen months ago: Saul poisons Ellen, who then finds herself downloaded into a new body aboard a Cylon Base Star, with a single Centaurio
  16. S04E16Battlestar Galactica S04E16DeadlockFebruary 20, 2009 8.3Ellen and Boomer travel to the Galactica. Saul is entranced at the sight of his wife while Adama puts Boomer in the brig. Ellen is not so pl
  17. S04E17Battlestar Galactica S04E17Someone to Watch Over MeFebruary 27, 2009 8.3Kara meets a pianist who reminds her of her father. She tries to play a melody she remembers from her childhood, and a drawing made by Hera
  18. S04E18Battlestar Galactica S04E18Islanded in a Stream of StarsMarch 6, 2009 8.0With Hera now likely in the hands of John Cavil, Admiral Adama sends out search teams to locate The Colony, the Cylon home world if you will
  19. S04E19Battlestar Galactica S04E19Daybreak, Part 1March 13, 2009 8.3The Colony is located sitting on the edge of a black hole with only one point of entry in what is a very large debris field. Knowing that th
  20. S04E20Battlestar Galactica S04E20Season's bestDaybreak, Part 2March 20, 2009 9.5A stripped down Galactica attacks the Cylon's Colony ship in the hopes of rescuing Hera. The meaning of the shared dream in the Opera House

Season 4 ranked & reviewed

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