Drone (Cataclysm)
A group of drones lived in an obscure section of space where they were programmed to turn any biological lifeforms into fuel. The Ninth Doctor was not familiar with their home.
When Nova fell through time due to a time eddy, she found herself among the drones and had to escape them. The Ninth Doctor rescued her and put the drones in sleep mode. (AUDIO: Cataclysm [+]Loading...["Cataclysm (audio story)"]) He later reprogrammed the drones and used them to defeat the Ravagers. (AUDIO: Food Fight [+]Loading...["Food Fight (audio story)"])
One of these drones was in the Space Museum. (WC: Hall of Monsters [+]Loading...["Hall of Monsters (webcast)"])