Prison Station
The Prison Station was where Davros was kept in Suspended animation.
History
Seeking help against the Movellan virus, the Daleks decided to attack the station and retrieve Davros so he could provide that help. They Dalek Supreme went on single Dalek Battlecruiser which quickly destroyed the station's defence fighter's. The cruiser then fired on the station, killing the Captain and half the crew. A small contengent of Daleks then stormed the ship backed up by their Dalek Duplicate troopers lead by the mercenary, Gustave Lytton, who after killing Osborn, released Davros.
Davros acted that he was aiding the Daleks, but actually he was creating his own army, using a device to take control of a few humans and a trio of Daleks, starting the Dalek Civil War. The station was the site of the first battle, along with the Dalek Ship and the London docklands in the 1980s linked via a Time corridor. The Doctor later infected the Daleks with the Movellan virus. All the station's crew eventually died before Stein activated the ship's self-desturct function, destroying both it and the Dalek ship docked with it. (DW: Resurrection of the Daleks)
