Yang decides to take Iserlohn by a ruse. The Rosen Ritter (Knights of the rose), a ground combat unit made of Imperial exiles, will pose as an imperial crew and infiltrate the fortress. Yang's staff is introduced: Murai, Patrichev, Fischer (a master of fleet maneuvers) and Frederica Greenhill, daughter of admiral Dwight Greenhill. The Iserlohn fleet is lured away from the fortress by decoys. When a damaged imperial spaceship asks for help, the commander of Iserlohn, who doesn't know where his fleet is due to radar jamming, authorizes it to dock... (thetvdb.com)