Dry Springs, Nevada, 1958. The Doctor finds an extraterrestrial artefact which draws the attention of a mysterious man in black, an alien warrior and Colonel Stark, commander of Dreamland - the military base also known as Area 51, in Roswell, New Mexico…

Escaping from the horror living beneath the desert, the Doctor confronts the Alliance of Shades and discovers two new allies in the fight against Lord Azlok…