Ra’s tells Nyssa that she must marry Oliver or face death. Meanwhile, an unexpected ally travels to Starling City to ask Diggle, Felicity, and Laurel to help infiltrate Nanda Parbat….

After the extraordinary turn of events that shockingly left an imprisoned Olivia “over there,” she fights to find her way home. Meanwhile, Peter and Walter try to move on with…

Peter, Olivia, Walter, Astrid and Broyles face off against the Observers in one final and extraordinary battle for the fate of mankind.

Clark is concerned about Lois’ safety so he diverts her away from covering the Vigilante Registrations Act by suggesting she cover another story. After he comes clean with her, an…

Relations between the U.S. and Russia are strained when Russian military leaders claim that the U.S. government has been compromised by the Goa’uld.

The Stargate is stolen, leading SG-1 to discover that the Trust has taken control of an advanced ship in orbit. Teal’c investigates a series of wide-spread Jaffa deaths.

Teal’c becomes the chief suspect in a murder investigation after he moves into an apartment off-base. Carter considers her future with Pete.