In this, the Doctor's first encounter with the Trods, he and his companions discover the truth behind the origin of the robotic enslavers who have overthrown their human creators on Trodos. The controlling Super-Trod is only a puppet directed by a power hungry criminal.
- The Trods run on static electricity.
to be added
- The Trods are later resurrected by a space traveller, the Master of the Trods. (COMIC: Return of the Trods) The Doctor tries to sign a peace treaty with them in his second incarnation. This attempt is thwarted by the Daleks. (COMIC: The Trodos Ambush)