Battle of Asuras

The Battle of Asuras was the battle that resulted in the destruction of Asuras as well as all nearly all of the Pegasus Replicators.

Prelude
For weeks Dr. Rodney McKay and a Wraith scientist work on trying to create a way to shut down the Replicators. They have no success but eventually thanks to Replicator created clones of the team and Dr. Elizabeth Weir they gain the ability to track the Replicators Aurora-class Warships and apparently summon the Apollo and the Daedalus to deal with them. At the same time the Atlantis team uses their ability to track the Replicator ships to evacuate the human worlds in their paths as the Replicators have begun destroying all human worlds they come across as part of a strategy in their war with the Wraith in an attempt to starve the Wraith. The Apollo and the Daedalus launch attacks against the Replicator fleet with new plasma beam weapons from the Asgard and destroy at least seven of around thirty-eight ships the Replicators have before their attacks cause the Replicators to retreat to their homeworld to regroup and rebuild their fleet. McKay and the Wraith scientist fail in their attempts but McKay comes up with a plan to turn all of the Replicators into a super-dense blob of nanites that will render them essentialy inert. In order for this plan to work however the fleet needs to remain in orbit long enough for the nanites in those Replicators to be pulled in. The Daedalus and the Apollo can't hold off a fleet of around thirty ships for long enough so they ask the Wraith for help and manage to get seven hive ships to join the gathering fleet. On the way back to Atlantis the team encounters the Travelers Ancient Warship commanded by Larin and Sheppard manages to convince her to join the fight and she gets five Travelers ships to help including the Ancient Warship. On Atlantis as part of his plan McKay creates a human-form Replicator named Fran and she informs him that the mass they create will be able to regain control of itself before it reaches the point the nanites bond together too tightly to work anymore and proposes overloading the Replicators ZPMs to cause the mass to implode destroying it and the planet. After ironing out the details the Daedalus, the Apollo and the Travelers Ancient Warship meet up with the rest of the fleet and jump to Asuras.

The Battle
The combined human and Wraith fleet jumps into orbit over Asuras and immediatly opens fire. The Asuarns are caught off guard and some of their fleet is destroyed in the opening salvo. The Apollo beams Dr. Rodney McKay, Ronon Dex and a team of marines into the Asuran City Core Room while beaming Fran, a Human-Form Replicator created by McKay, into the corridors of the city. McKay hooks up to the core and takes control of the city's power grid in order to overload the city's ZPM's while Fran makes her way to a room with other Replicators in it. In space the allied fleet succesfully holds off the Asuran Fleet and the Asurans don't seem to figure out what's really going on. Fran activates a program McKay installed in her that causes the nanites from all of the Replicators to combine together to form a massive blob mass that McKay plans to destroy by overloading the city's ZPMs causing it to implode taking the planet with it. In space an Asuran Warship tries to make a run for it into hyperspace but Lieutenant Colonel John Sheppard destroys it before it can succed with drones from the Travelers Ancient Warship. Also a Travelers ship is destroyed and at least one hive ship is shown to be severly damaged and possibly destroyed. The nanite mass eventually draws the nanites of all the Replicators in orbit in the ships into the mass ending the space battle but before McKay can overload the ZPMs the mass sinks into the ground due to how heavy it is collapsing the power grid and causing a blackout throught the city preventing the overload. In space Colonel Samantha Carter detects with the Daedalus's sensors that the planet's surface is rich with neutronium a very dense material that is the building block of the nanites and determines that if the mass absorbs the neutronium around it, it would cause it to sink to the planet's core and the pressure would cause it to implode. McKay increases the blob's mass and it absorbs the neutronium and sinks into the planet's surface. McKay, Ronon and the team of marines are beamed to the Daedalus and the fleet jumps to hyperspace just before the planet explodes. The Replicator mass is also destroyed.

Aftermath
With the destruction of the Replicators the Asuran-Wraith War came to an end, as did the alliance between the Tau'ri and the Wraith. It however remains the question how the actions of Elizabeth Weir will affect the galaxy.