A young girl named Kat encounters an unusual alien man on the moor near her town. She and her friend Toby discover that the man can communicate through electricity and radios. They show him their world as he shows them glimpses of his. However, Kat's cruel uncle assumes the worst of the alien man and pushes him down the stairs, apparently killing him. Days later as Kat goes to sleep, the lights in her room flicker, indicating the alien may still be alive.