"That was the scene in California's Mojave Desert five years ago - our historic first view of the Newcomers' ship. Theirs was a slave ship, carrying a quarter million beings bred to adapt and labour in any environment. But they'd washed ashore on Earth, with no way to get back to where they came from. And in the last five years, the Newcomers have become the latest addition to the population of Los Angeles... "
In 1991 a flying saucer crashes in the Mojave Desert containing a race of extraterrestrials, the Tenctonese, escaping from slavery under a cruel Overseer race. They resemble humans, but have certain anatomical differences and have been bred with greater physical strength and intelligence. These Newcomers, as they are called, are accepted as the latest immigrants to America, and the franchise explores issues around their integration into the multicultural society of the US.