When the Moonsters landed on Earth, they set out to find the place where all great stories are stored...the library. With the help of the Great Keeper of Books (a.k.a the librarian), the Moonsters are paired up with young Earthlings who will are excited to practice their reading skills with these new friends. But what happens when the young Earthlings fail their mission and decide that they're no longer interested in reading to their Moonsters?