Rio is a schoolgirl, a schoolgirl who can hear what other people are thinking. This can lead her into all sorts of situations, such as doing jobs for the Air Force and preventing stuff being blown up by bombs. It can also lead her into a whole lot of trouble, when, together with her best friend Jennie, she gets kidnapped and very nearly killed. Luckily she has friends in high places, at least when they fly. The SuperTwins are needed several times to extract her from the problems she gets into. She gets to find out all kinds of secrets, one of which is just about the biggest secret of them all, a secret which leads her into the strangest adventure of all.