Plot
Confident that the destruction of Thor's starship has ended the Replicator threat to Earth ("Nemesis"), the SG-1 team returns home through the second Stargate that has been put up at Stargate Command. Shortly after they learn that a Russian Foxtrot class submarine has been hijacked by creatures whose descriptions match the Replicators, Thor arrives at Stargate Command and asks SG-1 for help against the Replicators in the Asgard galaxy. As Colonel O'Neill (Richard Dean Anderson), Daniel Jackson (Michael Shanks) and Teal'c (Christopher Judge) go to deal with the hijacked submarine, Major Carter (Amanda Tapping) goes with Thor.
O'Neill, Daniel, and Teal'c try to obtain intelligence on the little self-replicating robotic invaders in the submarine, but they are forced to fall back. With Daniel's new theory that the Replicators are made up of the same materials they consume, the Replicators may be eliminated through sinking the iron submarine as long as the surviving Replicator from Thor's advanced ship is destroyed beforehand. Meanwhile, Carter witnesses a short battle against the Replicators in the Asgard galaxy during which five Asgard ships are lost. Carter notices the Replicators' attraction to new technology and proposes to use the O'Neill, an incomplete Asgard ship originally designed to fight the Replicators, as a lure to draw the Replicators into hyperspace and destroy them in the O'Neill's self-destruct. Thor eventually accepts the plan, the Replicators take the bait and are destroyed.
Back on Earth, O'Neill and Teal'c penetrate the submarine and find and destroy the original Replicator. When the other Replicators take full control of the submarine, O'Neill orders the forces outside to destroy the submarine and prepares for the end, but Thor beams the team onto his ship before the explosion occurs. With the imminent Replicator threat over, Thor promises that when the Asgard defeat the Replicators, he will come to assist Earth in the war against the Goa'uld.
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Famous quotes containing the word plot:
“After I discovered the real life of mothers bore little resemblance to the plot outlined in most of the books and articles I’d read, I started relying on the expert advice of other mothers—especially those with sons a few years older than mine. This great body of knowledge is essentially an oral history, because anyone engaged in motherhood on a daily basis has no time to write an advice book about it.”
—Mary Kay Blakely (20th century)
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—John Ashbery (b. 1927)
“The plot was most interesting. It belonged to no particular age, people, or country, and was perhaps the more delightful on that account, as nobody’s previous information could afford the remotest glimmering of what would ever come of it.”
—Charles Dickens (1812–1870)