Day Springs, Nevada, 1958. During a visit to a local diner, the Doctor befriends a young waitress, Cassie, and her friend Jimmy. When the Doctor examines an extraterrestrial artifact, he 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. So begins a momentous mission for the Doctor, who with the help of his new companions and Jimmy’s grandfather, Night Eagle, sets out to rescue the stranded alien, Rivesh Mantilax, and his wife, Saruba Valek, from the clutches of the American military – and from the terrifying alien race, the Viperox, led by the ruthless Lord Azlok.