Planet X (Risk Assessment)

"Planet X" was the name given by George Herbert Sanderson to the homeworld of the xXltttxtolxtol. It was relatively close to Earth, being only a few star systems away. It was similar to Guatemala in terms of environment.

In the 20th century, the planet was dying and had a few thousand years left. The xXltttxtolxtol sent out probe with their coordinates and a faster-than-light drive. They hoped that they would find people who they could take advantage of. Earth took the bait and George Herbert travelled to Planet X. The xXltttxtolxtol used the Cardiff Space-Time Rift for a faster transport, sending pods containing xXltttxtolxtol warriors and which could be made into a portal linking Earth and Planet X. The xXltttxtolxtol were eventually defeated by Torchwood Three. (TWN: Risk Assessment)