Factory ship (War of the Daleks)

During the renewed civil war between the Daleks loyal to the Dalek Prime and those loyal to Davros, the former faction planted a dimensionally transcendental factory ship aboard a Thal ship returning to their own space. This was discovered by the Eighth Doctor who, aware that this would enable the creation of a new Dalek army in enemy territory, used the TARDIS to expel the factory ship through interstitial space, claiming that he had already dealt with it "in another time, and another place." (PROSE: War of the Daleks)