Who hasn't dreamed of going to the moon? That dream for eleven-year-old Leo Gray is about to come true—but he’s in for the surprise of his life! In the year 2113, most people live in robotically maintained homes, ride around in self-flying cars, and wear ozone-resistant clothes. Most people that is; just not Leo Gray’s parents. They’re stuck in the past, and science know-it-all Leo is completely fed up with his beyond-embarrassing living arrangement with them. But when he enters a rocket-building competition for a chance to attend the Lunar Academy, Leo’s luck finally seems to turn in his favor! However, it's not long after stepping foot into his dorm room that Leo discovers the Moon’s celebrated city is harboring a world of dark secrets. It's soon a race against the clock for Leo and his friends Andromeda Groves (a code-hacking whiz from Canada), Pavo Digbi (a history buff from Brazil), and Grus Pinwheel (a musically gifted and comically endearing Aussie) to intercept and foil plans to destroy the city—leaving the group’s leader faced with a decision that no eleven-year-old should ever have to make: save Earth or save himself and the city he fought so hard to reach.