The second world war ensured tons of documentaries. The information about this topic is overwhelming, but of course you don't want to watch every documentary ever made. But if you don't have a clue where to start, or if you just want a very nice summery of the second world war, then this documentary is a must see in my opinion.
The documentary shows the development of the second world war in a chronological and interesting way. It is narrated from a very objective point of view and therefore the educational level is very high. And the amount of topics is very broad, so you get introduced with every aspect of this heinous period. Due this fact you can orientate what you find interesting and you can search for more documentaries about specific topics later.
The capture my opinion in a short sentence: "Please watch this amazing documentary"!