The Tractators Expansion
Insectoid Tractators with psychic abilities burrow under human colony Frontios, absorbing resources and inhabitants. The Fifth Doctor and Turlough discover their coordinated expansion and must stop the Gravis from total control. The conflict pits survival against relentless absorption, challenging both human and alien protagonists.
Involved Characters
Arc Timeline
Season 21
4 eventsTurlough and Norna step into a cavern whose walls shimmer with strange, reflective surfaces and scattered artifacts. Turlough’s unease is immediate, his pleas to leave masking deeper discomfort. Norna teasingly …
Turlough and Norna push deeper into the alien cavern despite his unease, the glittering walls masking the true horror ahead. Turlough’s casual bravado crumbles when the cavern’s hidden mechanisms reveal …
Turlough collapses under the weight of repressed memories as Norna and Range confront him directly. His trance initially resists visualizing the Tractators’ mechanical expansion but cracks under pressure, forcing him …
The Gravis, leader of the Tractators, confronts the imprisoned former colony leader Plantagenet in the heart of their underground lair. With cold precision, the Gravis outlines their long-term plan to …