Fall of the Scorpion Fleet Shipyards
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The Cylons achieve complete surprise upon jumping to the shipyards, and the Colonials have little time to put up any defense. At least one battlestar is immediately destroyed after being struck by a missile, and rows of the shipyard's Vipers and Raptors are destroyed before taking off. In conjunction with the attack, the Cylons initiate a nuclear strike on the surface of Scorpia (TRS: "The Plan").
The battlestar Pegasus, commanded by Admiral Helena Cain, is docked at the shipyards in order to undergo a three-month systems overhaul when the attack occurs. In preparation for the refit, all computer networks are shut down, leaving the battlestar largely unaffected by Cylon-infiltrated Command Navigation Program. During the attack, Colonel Belzen reports that all computers are down and that the crew must perform all functions manually.
Tethered to its dock, Pegasus is swarmed by Raiders and struck by several missiles. Fuel and ordnance ignite on the battlestar's hangar decks, causing explosions that cause over 700 casualties. Cain orders a hasty departure from the dock, and the ship fires its reverse thrusters and tears itself free from the burning shipyard's umbilicals.
With Pegasus's defenses still down, and two nuclear missile inbound, Cain orders the CIC crew to spin up the FTL drive and to perform a blind jump on her command, despite the risk of reemerging inside a celestial body. The nuclear detonations throughout the shipyard create bursts of electromagnetic radiation that mask the jump and fool the Cylons into believing that the ship is destroyed (TRS: "Pegasus"; "Razor").