When - near the future
Where - first, it was a planet that was surrounded by beautiful nature, but turned into a place full of buildings.
What's the problem - all the nature were destroyed and buildings were built. When the nature was gone, the planet became dark and became a difficult place to live.
How is the problem solved - an object which looks like a jellyfish appeared, and inside it was a place full of nature.
Theme - this film tells us how nature is important to us and if we lose it, our life could be very dark and full of depresses feelings.