During the time that the Galactic Empire was ruled by the Emperor, also known as the reign, Captain Shan of the Imperial Navy was in command of an Imperial Star Destroyer. His Star Destroyer, along with Commodore Idel's Star Destroyer and Captain Conro's Star Destroyer, formed a flotilla that was trying to recover Palpatine's yacht, the Imperialis, from Lando Calrissian and his team. In the middle of the chase, the ships commanded by both Shan and Conro activated their tractor beams targeting the Imperialis. Nevertheless, Lando Calrissian tricked Conro's tractor beam into latching onto Shan's ship, resulting in a collision between the two Imperial vessels. This crash enabled Calrissian and his crew to get away with the Imperialis into the vastness of space.