The Daleks are advancing, their empire constantly expanding. The battles rage on across countless solar systems - and the Doctor finds himself stranded on board a starship near the frontline with a group of ruthless bounty hunters. Earth Command will pay these hunters for every Dalek they kill, every eyestalk they bring back as proof. With the Doctor's help, the bounty hunters achieve the ultimate prize: a Dalek prisoner - intact, powerless, and ready for interrogation. But with the Daleks, nothing is what it seems, and no one is safe. Before long the tables will be turned, and how will the Doctor survive when he becomes a prisoner of the Daleks? It is an adventure featuring the Tenth Doctor, as played by David Tennant.