In Oluu`s world, the young are programmed to take advice from the Wise Ones, load it into their systems, and follow it. Oluu does not always run so smoothy, and the Wise Ones worry about her carelessness. In spite of these concerns, Oluu is given a chance to redeem herself when she is sent on a research mission to Earth. This time, however, she must follow rules, or face the consequences. Oluu takes on several different forms while she begins to learn about life on Earth. When she meets Molly Harkin, she is an energetic Border collie, and although Molly tries to look out for her new and unusual dog friend, Oluu gets into trouble before long and must choose a new form. She spends time as a bird, and, to Molly`s delight, as a pony. But no matter which form she takes, Oluu can`t seem to help attracting dangerous attention. When a boy named Jack becomes a little too interested in a certain pony, Molly doesn`t know whether she`ll ever see either of them again.