Black Dalek (The Curse of the Daleks)

After the Daleks were rendered inactive on Skaro due to the power to the Dalek City being cut off, a Black Dalek was among a number of Daleks reactivated by Bob Slater who betrayed his expedition. The Daleks were deactivated once more but not before the Black Dalek warned the remaining members of the expedition that full power would one day be restored and the Daleks would return. (AUDIO: The Curse of the Daleks)