Henry’s ship returns causing Carter to fear it maybe linked to the town’s deadly electrical anomalies.

The Daedalus is infected by a Wraith computer virus, while members of the expedition hope to return to Earth.

The Daedalus arrives to defend Atlantis from the Wraith onslaught, but it may not be enough when the team discovers that an even larger armada is on the way.

An unstoppable energy weapon leaves Atlantis under seige after Earth launches a preemptive attack against a very powerful enemy’s homeworld.

With a group of Wraith hive ships on the way to Atlantis, the team searches for a place to flee and a way to destroy the city. McKay leads a…

When Green Arrow’s band of heroes thwarts his efforts once too often, Lex employs a super-powered vigilante to take down the Emerald Archer.

Kara goes to Washington to look for her missing crystal, but is captured after she breaks into the lab. She’s sedated with a truth serum that has kryptonite in it,…

Now that Violet knows where the 3 Pages are, she returns to Fort Collins with Axel and Julius.

3 Pages are key to raising or destroying the Dark One, but only Hansen knows where they are hidden.

Sam and the Brides arrive at Fort Collins, where Hansen reveals a secret for raising the Dark One.

After an epic battle, Axel reconciles with Vanessa and comes to terms with the death of Scarlett.

An angel causes people to cheerfully go out to murder, and when the Winchesters investigate one of them falls under its sway.

D’Anna holds President Roslin and other Colonials hostage in order to draw out the Final Five from the Colonial fleet. Col. Tigh believes he has the solution to end the…

Kara Thrace seeks her own path in the search for Earth while the Cylons face the threat of sentient Centurions. A member of Galactica’s crew learns a dark secret about…

During the Cylon attack, Sam Anders has a strange encounter with a Cylon Raider. The crew of the Galactica view Starbuck’s return with suspicion and doubt. Gaius Baltar takes refuge…

Tigh imposes martial law and threatens to split the fleet as Lee works to free President Roslin and organize democratic resistance.