Death Star II plans

The construction data of the Death Star II were a trap laid by Black Sun and Palpatine against the Rebel Alliance.

The Imperial data carried by a freighter named Suprosa from Coruscant to Bothawui under an XTS contract were, in truth, outdated, and the second Death Star was fully operational, unlike what the schematics read.

Suprosa was seemingly carrying "secret" Imperial construction data under an XTS contract, under the guise of hauling fertilizer. Black Sun leader Prince Xizor leaked information concerning the project to the Bothan Spynet, who learned the freighter's schedule.

Blue Squadron's Y-wings, piloted by Bothan and Human pilots, led by Skywalker, Rendar, and Melan, ambushed the ship as it exited hyperspace. After losing 6 Y-wings in the battle, the freighter's pilot surrendered; Rendar and Melan, leading a team of Bothans, boarded the ship to capture the supercomputer, which was determined to be holding the location and plans of the Second Death Star.

After capturing the plans, Koth Melan told Skywalker that the computer was being encrypted and protected by a self destruct device, and that a special Bothan encryption team on Kothlis would be able to access its contents. However, while en route to Kothlis, the party was attacked by the Immobilizer 418 cruiser Claw and the Victory I-class Star Destroyer Hunter. However, the Claw was driven off by Blue Squadron, and the Rebels managed to arrive at Kothlis.

Koth Melan and Luke Skywalker, while decoding the data in a safehouse down on the planet, were attacked by a team of Barabel bounty hunters looking for the bounty on Skywalker, led by Skahtul. Melan was killed and Skywalker captured.

The surviving Bothan spies fled from Kothlis on Fey'lya's Pride, with the stolen Imperial computer to Kothlis II, a space station in orbit around Kothlis. Around that time, Darth Vader's Death Squadron, the Executor, supported by the Avenger has arrived and begun it's attack on Kothlis II, where the computer is transferred on to the Razor. Under covering fire from Liberty the Razor makes it safely to hyperspace.

Vader had come to Kothlis to collect Skywalker as well as to make it appear as if the Empire was genuinely concerned with the "loss" of the plans.

While en route to its rendezvous with the Independence, the Razor, has come under attack by an Imperial pursuit group. The corvette is eventually captured by the Avenger, but managed to launch an escape pod which is picked up by the civilian Dreadnaught Mercury. She picked up an escape pod carrying a lone Rebel crewman, who had with him the plans for the second Death Star.

Mercury then took the escape pod to the rendezvous point with Independence and launched the escape pod again to reach the Cruiser. Avenger though showed up again along with the Executor. The crew of Indepedence managed however to protect the pod while moving to the Cruiser. Analysis of the plans helped the Alliance design the assault against the new Death Star. However this also led them into a trap, since the station was fully armored and operational. The assault was foreseen by the Emperor and the fleet was surrounded in the Battle of Endor.

Appearances

 * Shadows of the Empire
 * Star Wars: X-wing Alliance
 * Star Wars: Rogue Squadron II: Rogue Leader
 * Star Wars Episode VI: Return of the Jedi