After successfully destroying the Asgard spaceship and crashing into the ocean it seems that SG-1 managed to save Earth once more. But victory celebration will be short, since one of the Replicators survived. Not only that, but it got on board a Russian submarine, killing the crew and starting the rapid replication. O’Neil is quick to suggest a nuclear attack on the submarine, but the Pentagon thinks it will cause trouble with the Russian government which they certainly want to avoid. The wisest, but much more dangerous decision has been made, so O’Neil and Teal’c will lead a small team aboard the submarine and try to eliminate the Replicators with raw firepower. Meanwhile, Thor comes through the Stargate thanking SG-1 for saving his life, but bringing grave news. His home world is being under attack by the Replicators and facing complete destruction. Carter is thus taken to their home world in hopes of helping the Asgard find the key to defeating the foe.




















