Some time after the Battle of Hoth, four members of the Rebel Alliance flight team known as Rogue Squadron infiltrated the outpost flying black market TIE/LN starfighters. Unaware that the pilots of the fighters were Rebels, Gerdy's commanding officer believed that Darth Vader had personally sent the ships to punish Gerdy for using priority frequencies to call a woman from Aduba-4.
Led by Luke Skywalker, the TIE fighters strafed the command center of the outpost forcing Gerdy and his superior to evacuate. They attempted to escape via a sub-ter rover, but were forced to stop when another TIE fighter destroyed a suspension bridge. Realizing that defeat was imminent, the commanding officer of the base invoked Emergency Strategic Option Six resulting in the Imperials' immediate surrender.