Ethan Crownberry's most epic adventure. Look! Up in the sky! It's a bird! It's a plane! It's a toddler with a high-velocity rocket strapped to his back! Little Johnny Johnson always dreamed of one day flying through space. And when his inventive grandfather builds him a Jetpack for his birthday, he grows as close to obtaining that dream as any small boy can ever hope. But it's not long before he is faced with the responsibilities that accompany such a magnificent power. And quickly he finds himself torn between fulfilling his heart's desire and helping people in need. Join Ethan Crownberry in an adventure beyond imagination, and meet, for the first time, the world's newest and most unlikely hero.