In the very first two hour episode everything from the nature of the Big Bang, to black holes, to the lifespan of our sun, to colonization of Mars and interstellar technology is covered, never in a sensational way but rather from a simple but deliberate set of unapologetic arguments for how these things must operate to how they could be solved. That it is all beautifully realized by way of well-executed computer generated graphics makes it all the more engaging and really fun to watch.