Thousands of years later, planet earth is no longer habitable for humans to survive due to nuclear warfare, people flew off into the unknown trying to discover a more suitable planet to live in.

A small astronaut is wondering through the mystical mushroom cave that the spaceship told him to explore.

He will not know that the planet he landed is actually earth hundreds of years after they left, which is covered by unknown plant and species.

There are hints of bridges and ducks that might indicate that human once lived here. Eventually he will uncover a note left by some of the last humans to reveal part of the truth.