Located in the Forbidden Valley area of Alton Towers next to the original Nemesis roller coaster, Nemesis Sub-Terra is housed entirely indoors. The ride is designed to be a “horror experience”, with the backstory being told via video screens in its queue. This is an extension of the original Nemesis storyline, which was based around an alien that had been buried beneath the Earth's surface for 2 million years. A shadowy organisation known as The Phalanx has now taken over the site, and has discovered a further series of caves beneath the alien's subterranean home. Guests are about to enter these, in order to study an egg that has been found within.
Nemesis Sub-Terra’s ride operators are dressed in military-style Phalanx uniforms, and guide groups of up to 40 guests into the entrance area. This hosts two “elevators”, which take riders down to the mock caves below. Once inside, they are confronted by the egg, and strapped in for a ride experience that we won’t reveal in order to retain an element of surprise.