While undoubtedly Hitler had plans for the conquest and total subjugation of Eastern Europe and the Soviet Union and for turning the rest of Europe into vassal states, this selection of clips from German sources makes a better case for the Nazi's duplicity in carrying out those plans than the plans themselves. Moreover much stronger evidence could have been found in some other Nazi-produced documentaries and newsreels, many of which are available here at IA. The explanation for this probably lies in the time constraint the Allied War Crimes Commission was forced to work under. That this evidentiary documentary obviously was a rush job would tend to support this supposition. It's also possible the films I alluded to had yet to be unearthed. In any event, it is interesting to see how the material which was available was used as criminal evidence.
It should be noted that some atrocities of the Holocaust were covered by a different film prepared for the war crimes trials. The title is "Nazi Concentration Camps," and it's available here at IA through the following link. However be warned it is extremely graphic and difficult to watch for many, myself included.
http://www.archive.org/details/nazi_concentration_camps
"Triumph of the Will," clips of which appear in "The Nazi Plan," also is here at IA in its complete form with English subtitles. Despicable as much of its content is to our eyes, there is no denying its greatness as a propaganda epic perfectly crafted to reach the heart and mind of the typical German of 1935. Some deny this, but the evidence of succeeding years proves it was true.
http://www.archive.org/details/TriumphOfTheWillgermanTriumphDesWillens
Finally, here is a link to two minutes of film to get the bad taste out of your mouth caused by all of the above. If you haven't seen the brilliant "Gen. Adolph Takes Over," be prepared to laugh until your sides ache.
http://www.archive.org/details/1942-01-07_Gen_Adolph_Takes_Over