Trodos
From Tardis Wiki, the free Doctor Who reference
Trodos was the home world of the Trods. In 2066, the Trods enslaved the Human population on Trodos, but were defeated by the Doctor. (TVC: The Trodos Tyranny)
Some time later, a space traveler came to Trodos and reactivated the Trods. (TVC: Return of the Trods)
Centuries later, the Daleks invaded Trodos and massacred most of the Trods, but were defeated by the Doctor. (TVC: The Trodos Ambush)
