I read the book related to the series and was utterly confused when extra dimensions and membranes came into play. This series provides some clear visuals and animations which gives me sort of and overall picture of the theory. But unless you are a mathematician or a physicist most of these theoretical aspects will go way over your head.
I hope this String Theory or M-Theory will be practically proven in the future which will unlock whole new aspects of the universe. I guess we have to wait and as we are currently limited by the level of technology.