Jack and Curtis finally learn the location of the override device. They try to trap the architect of the terrorist strike before the remaining nuclear plants go critical.
Tony pushes Dina to reveal more of her knowledge of Marwan, while Driscoll faces another personal crisis with her daughter.
The team searches for a valuable Zero Point Module rumored to be hidden on the planet Dagan — but their new allies have motives of their own.
The Replicators begin a systematic attack of the Goa’uld, forcing Baal to come to Earth for help. The Jaffa Resistance risk their entire movement in an attempt to retake a holy city in Baal’s domain.
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.
Audrey places herself in a compromising position when she and Jack learn of her husband’s possible involvement with the terrorists.
Marianne offers Curtis information on the location of the override device in exchange for a lighter sentence, but the tables soon turn and Curtis discovers that there’s another player in the game.
Sarah bargains for a stronger position at CTU, while Tony takes charge of the interrogation of Dina and Behrooz.
A woman is found in suspended animation in Atlantis, and the team is shocked to see that it is Dr. Weir herself, who tells them of her trip 10,000 years into the city’s past.
Jack is confronted in his home by an irate barber…who claims to know everything about the Stargate project and SG-1.
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.
Jack and Tony are able to trace Dina’s location, but Behrooz slips through their fingers. Dina demands a full pardon for her son in exchange for information on the override device.
Edgar wrestles with his emotions when his mother is trapped in the path of the nuclear fall-out.
Behrooz turns to his uncle for help, but Navi closes in on him before he can get away.
The team finds a paradise world that would make an ideal sanctuary for those fleeing from the Wraith, but the local inhabitants believe their goddess will not permit it.