Along with Ralph, Perkins, Hoffman and Bordon arrive near the two cities just in time to see a Vegan spaceship land. As it turns out, Sodom and Gomorrah had been the landing site of an ancient Vegan expedition. One of its members, Drapondor (an Immortal like Bordon himself) had disappeared, and that caused a conflict between the two people. As Perkins' group enters the city, they attract unwelcome attention and seek refuge in the house of Lot, where they find Drapondor - infected with leprosy, which is also the cause of his detachment from the expedition force. As the events transpire as recorded in the Bible, Perkins and his group, taking Lot and his family along, manage to escape just before the Vegans drop an atomic bomb, eradicating the two cities. The time travelers are whisked back into their own time at the last second; in Delta-4 Drapondor is cured of the disease, and the series ends with Bordon making a public apology to the people of the Earth.