Geeky teenager David and his popular twin sister, Jennifer, get sucked into the black-and-white world of a 1950s TV sitcom called "Pleasantville," and find a world where everything is peachy keen all the time.
Simon is a nine-year-old autistic boy who has cracked the government's new "unbreakable" code. This skill renders the new billion-dollar secret code vulnerable, especially if enemies of the United States should learn of Simon's abilities and capture him.
When some very creepy things start happening around school, the kids at Herrington High make a chilling discovery that confirms their worst suspicions: their teachers really are from another planet! As mind-controlling parasites rapidly begin spreading from the faculty to the students' bodies, it's ultimately up to the few who are left – an unlikely collection of loners, leaders, nerds and jocks – to save the world from alien domination.
Having just returned from a mission to Mars, Commander Ross isn't exactly himself. He's slowly becoming a terrifying alien entity with one goal -- to procreate with human women! When countless women suffer gruesome deaths after bearing half-alien offspring, scientist Laura Baker and hired assassin Press Lennox use Eve, a more tempered alien clone, to find Ross and his brood.