Plot
Galactica
After Starbuck crashes her Viper during a training exercise, Apollo strips her flight status. Colonel Saul Tigh mourns for his wife. He and Starbuck criticize the crew members who spent the occupation of New Caprica with the fleet until a disgusted Admiral William Adama orders them to stop. Starbuck cuts her hair and seeks out Kacey, whom she brushed off earlier. Tigh confines himself to his quarters and drinks heavily.
Lieutenant Felix Gaeta reconstructs Gaius Baltar's work on the location of Earth [1] and determines that the fleet should navigate to a distant nebula shaped like a lion's head – Lion's Head Nebula. The pilots choose "Athena" as the new call sign for Sharon Agathon after she explains that "Boomer" refers to someone else.
The Cylon fleet
Caprica Six and a Number Three copy tell Baltar that the Cylons plan to make Earth their new home. Hoping the Cylons will let him live, Baltar tells them about the Lion's Head Nebula.
In a conversation with Caprica Six, Baltar starts to question whether he himself is a Cylon. Caprica Six has told him in the past that there are only 12 Cylon models of which Baltar has only met 7 and he asks about the 5 models he has never met. Caprica Six declines to offer information and says "we don't talk about the other five", visibly distraught.
The Cylons send a basestar to scout the nebula but lose contact after a virus infects the ship and its crew. At Head Six's suggestion, Baltar volunteers to board the basestar so the Cylons can avoid exposure to the disease. A dying Six copy identifies an ancient beacon the crew found and brought aboard as the source of the sickness. She accuses Baltar of leading them to the nebula so they would find the infected beacon; Baltar kills her after she threatens to tell the others. Baltar omits mention of the beacon in his final report, but Caprica Six notices it in the photos he brought back.
The Cylons abandon the infected basestar. Later, Athena and Racetrack discover the basestar while scouting the nebula in a Raptor.
The Cylons are the main antagonists of the Battlestar Galactica franchise, making appearances in the original 1978 series, the 1980 series, the 2004–2009 reboot series, and the spin-off prequel series Caprica. In the 1978 series, Cylon is also the name of the reptilian race who created the robot Cylons.
Number Six is a family of fictional characters from the reimagined science fiction television series Battlestar Galactica. She is portrayed by Canadian actress and model Tricia Helfer. Of the twelve known Cylon models, she is the sixth of the "Significant Seven". Like the others of the "Significant Seven", there are several versions of her, including Caprica-Six, Shelly Godfrey, Gina Inviere, Natalie Faust, Lida, and Sonja. She is the only model that does not use one particular human alias for all copies.
Dr. Gaius Baltar is a fictional character in the TV series Battlestar Galactica played by James Callis, a reimagining of Lord Baltar from the 1978 Battlestar Galactica series. He is one of the show's primary characters.
William "Bill" Adama is a fictional character in the re-imagined Battlestar Galactica television series produced and aired by the SyFy cable network. He is one of the main characters in the series, and is portrayed by Edward James Olmos. The character is a reimagining of Commander Adama from the 1978 Battlestar Galactica series, originally played by Lorne Greene.
Leland Joseph "Lee" Adama is a fictional character in the television series Battlestar Galactica. He is portrayed by actor Jamie Bamber, and is one of the main characters in the series. His first appearance was in the 2003 Battlestar Galactica miniseries.
Karl C. Agathon is a fictional character on the re-imagined Battlestar Galactica TV series, portrayed by Tahmoh Penikett.
"Kobol's Last Gleaming" is the two-part first-season finale of the reimagined Battlestar Galactica television series.
"Valley of Darkness" is the second episode of the second season of the reimagined Battlestar Galactica television series. It aired originally on the Sci Fi Channel on July 22, 2005.
"Home" is a two-part episode of the reimagined Battlestar Galactica television series. Part 1 aired originally on the Sci Fi Channel on August 19, 2005, and Part 2 aired on August 26, 2005.
"Exodus" are the third and fourth episodes of the third season from the science fiction television series, Battlestar Galactica. The episodes originally aired on the Sci Fi Channel on October 16 and 23, 2006.
"The Passage" is the tenth episode of the third season from the science fiction television series Battlestar Galactica. It aired on December 8, 2006.
"The Eye of Jupiter" is the eleventh episode of the third season of the science fiction television series Battlestar Galactica. It aired on December 15, 2006, and was filmed in Kamloops, BC, Canada.
"Rapture" is the twelfth episode of the third season from the science fiction television series Battlestar Galactica. Aired on January 21, 2007, this episode marked the return of regular broadcasting after the Christmas mid-season hiatus.
"Crossroads" are the nineteenth and twentieth episodes of the third season and season finale from the science fiction television series, Battlestar Galactica. Neither episode begins with a survivor count.
"Faith" is the sixth episode in the fourth season of the re-imagined Battlestar Galactica. It first aired on television on May 9, 2008. The episode guest starred actress Nana Visitor, best known for her role as Kira Nerys on Star Trek: Deep Space Nine. The survivor count shown in the title sequence is 39,675.
"The Road Less Traveled" is the fifth episode in the fourth season of the re-imagined Battlestar Galactica. It first aired on television on May 2, 2008. The survivor count shown in the title sequence is 39,676. It is the only episode of the entire series in which Bill Adama does not appear, and the first of two episodes not to feature Laura Roslin. It is also the final episode in which Number Six is absent.
"Sine Qua Non" is the eighth episode in the fourth season of the reimagined Battlestar Galactica. It first aired on television on May 27, 2008. The episode name is a Latin term referring to something essential that cannot be done without. The survivor count shown in the title sequence is 39,674.
"Islanded in a Stream of Stars" is the eighteenth episode in the fourth season of the reimagined Battlestar Galactica. It aired on television in the United States and Canada on March 6, 2009. The survivor count shown in the title sequence is 39,521. The Region 1 DVD release of Season 4.5 includes an extended version of this episode.
"Daybreak" is the three-part series finale of the reimagined science fiction television series Battlestar Galactica, and are the 74th and 75th episodes overall. The episodes aired on the U.S. Sci Fi Channel and SPACE in Canada respectively on March 13 and March 20, 2009. The second part is double-length. The episodes were written by Ronald D. Moore, and directed by Michael Rymer. The Season 4.5 DVD and Blu-ray releases for Region 1 feature an extended version of the finale, which not only combines all three parts as a single episode, but also integrates it with new scenes not seen in the aired versions of either part. The survivor count shown in the title sequence for Part 1 is 39,516. The survivor count shown in the title sequence for Part 2 is 39,406. At the end of Part 2, Admiral Adama announces the survivor population at approximately 38,000.
