In order to design a future, it is wise to examine:
–  Where we come from
–  Where we are
–  Who we are
to determine where we are going.

To start with the first one, we first have to understand that our human history is not as we are expected to believe.
Our history is not linear, but more cyclic.
This becomes clear when we start to realize that we are certainly NOT the first technologically advanced civilization on our planet.

This documentary shows us places and artifacts that are in direct conflict with formal archeology.
Formal archeology persists on low-technology, since that is in line with their concept of linear history/civilization.
Yet, we have hard and concrete evidence that somewhere in history, we were aware of advanced astronomy, advanced mathematics and high-technology tools.

This documentary does not tell us who these technologically advanced people were, but they were there sometime in the past.