History Recap / BattlestarGalactica2003S04E11SometimesAGreatNotion

** In a more indirect way, Roslin, who decides to cease treatment for her cancer. While there's a very good chance that her treatment wouldn't have achieved much anyway, this makes it certain that she won't be around for much longer.

* DespairEventHorizon:
** Bill rises the morning after the fleet discovers Earth to find "Frak Earth" graffiti on the walls and crewmen slumped in drunken stupor everywhere. Suffering a HeroicBSOD himself, Adama passes without comment.
** Dualla, as a result of the discovery of the bombed-out Earth and her general lack of will to live.

* DramaticNecklaceRemoval: Kara pulls the dog tags off the body in the crashed Viper cockpit.

* DrowningMySorrows: Bill continues to drink after discovering that Earth is a bombed-out wasteland.

* GallowsHumor:

* {{Irony}}: Whereas in previous seasons, Bill would be the one chastizing Tigh for his alcoholism or destructive behaviour, the situation is reversed here. After Bill tries to pull a SuicideByCop, Tigh is the one to dress him down and set him straight.
* KilledOffForReal: Dualla and (inevitably) D'Anna.
* KillTheCutie: Dualla.

** Tigh realizing that Ellen is the last Cylon model.

* [[SuicideByCop Suicide By Cylon]]: Bill tries to get Tigh to shoot him in his grief over the latter being a Cylon, Dee committing suicide and Earth being dead, but it is eventually averted.

* DissonantSerenity: Dualla finds the Agathon family happily going about their day, which further fuels her DespairEventHorizon.

* {{Irony}}: Whereas in previous seasons, Bill would be the one chastizing Tigh for his alcoholism or other destructive behaviour, the situation is reversed here. After Bill tries to pull a SuicideByCop, Tigh is the one to dress him down and set him straight.

* {{Irony}}: Whereas in previous seasons, Bill would be the one chastizing Tigh for his alcoholism or behaviour, the situation is reversed here. After Bill tries to pull a SuicideByCop, Tigh is the one to dress him down and set him straight.

* [[SuicideByCylon SuicideByCop]]: Bill tries to get Tigh to shoot him in his grief over the latter being a Cylon, Dee committing suicide and Earth being dead, but it is eventually averted.

* SuicideByCop: Bill tries to get Tigh to shoot him in his grief over the latter being a Cylon, Dee committing suicide and Earth being dead, but it is eventually averted.

On Earth, Kara is still investigating the Viper wreckage when she finds the remnants of the cockpit. She clears away wreckage to find… a corpse that has the same blonde hair as her, and is wearing her dog tags and wedding ring. Disturbed by the skeleton of herself, confusion by what is happening and Leoben's disquieting attitude towards the body, she eventually burns it in a funeral pyre.

Baltar and the rebel Cylons eventually confirm to a shocked Bill, Lee and Roslin that all of the corpses they found from the Thirteenth Tribe test as humanoid Cylons, and that the Thirteenth Tribe created their own mechanical Cylons, which also rebelled against their masters.

Most of the command crew return to ''Galactica''. Upon disembarking their Raptor, Bill and Roslin hastily beat a retreat while Lee fends off questions from confused crewmen, while Caprica-Six finds a Cylon Centurion's head and two hundred corpses on the planet and brings them back to Baltar's lab for study. Upon examining the head, Baltar and the Cylons confirm that it is unlike any Cylon they've seen before.

* SuicideByCop: Bill tries to get Tigh to shoot him in his grief over the latter being a Cylon and Earth being dead, but it is eventually averted.

* SuicideByCop: Bill tries to get Tigh to shoot him in his grief over the latter being a Cylon, but it is eventually averted.

* MoodWhiplash: Dualla rekindles the romance with her ex-husband, has an uplifting talk with Gaeta, then puts a gun to her own head and commits suicide.

* TurnedAgainstTheirMasters: Much like the present-day Cylons, the Thirteenth Tribe created their own version of the Cylons 2,000 years earlier, which also turned against the humans and destroyed them all.

** The discovery that the Thirteenth Tribe were Cylons.

Baltar eventually confirms to a shocked Bill, Lee and Roslin that the corpses they found appear to be humanoid Cylons, and that the Thirteenth Tribe created their own Cylons, which also rebelled against their masters.

On Earth, Tigh comes across D'anna, who tells him that she is going to remain behind and die because she doesn't want to confront Cavil and the rest of his troops. Tigh experiences another vision soon after and walks into nearby water, having a vision of himself trying to rescue Ellen from a collapsing building just before the world is destroyed.

** D'anna gives up completely and chooses to stay on the destroyed Earth rather than go on.

* KilledOffForReal: Dualla and (inevitably) D'anna.

* DrivenToSuicide:

[[Recap/BattlestarGalactica2003S04E10Revelations The command crew of Galactica and the rebel Cylons walk around the ruined landscape of Earth in despair]], trying to figure out what their next step should be.

Most of the command crew return to Galactica. Upon disembarking their Raptor, Bill and Roslin hastily beat a retreat while Lee fends off questions from confused crewmen, while Caprica-Six finds a Cylon Centurion's head and two hundred corpses on the planet and brings them back to Baltar's lab for study. Upon examining the head, Baltar and the Cylons confirm that it is unlike any Cylon they've seen before.

On Earth, Kara is still investigating the Viper wreckage when she finds the remnants of the cockpit. She clears away wreckage to find... a corpse that has the same blonde hair as her, and is wearing her dog tags and wedding ring. Disturbed by the skeleton of herself, confusion by what is happening and Leoben's disquieting attitude towards the body, she eventually burns it in a funeral pyre.

Tigh realizes that the fifth member of the Final Five is... ''his wife''.

Baltar reports to the group that he has done soil samples and confirmed that the soil is heavily irradiated. He then explains that the planet was nuked two centuries prior, and Bill tells the group not to drink any of the water.