In the distant future, the human race leaves the wasteland that they created on Earth. Mother Nature has reclaimed the Earth as her own, helping the creatures left on Earth to evolve and protect themselves in case the humans are to ever return. Soon the humans will return to Earth as Skyworld begins to slowly fall from above. A young teenager named Peter must navigate his airship he calls 'The Beanstalk" back to Earth to find the power source to save Skyworld from falling, but danger awaits as he finds himself in a very different world from what he's read in history books.