New Earth (Invasion of the Dinosaurs)

New Earth, according to Sir Charles Grover, was a planet which would be colonised by a select group of people, including Ruth, Mark and Adam. In reality, the spacecraft taking them there was a fake and the planet would actually have been Earth after time had been reversed by Professor Whitaker's time machine as part of Operation Golden Age. Sarah Jane Smith was taken to the fake spacecraft and told she had been there for months, but she deduced the truth and exposed the hoax, prompting the "colonists" to reject Grover's plan as they perceived it as too evil. (TV: Invasion of the Dinosaurs)