Overview of the band history with lots of clips from VH1's Behind the Music plus other interviews such as from old Hard n Heavy videos. Lots of unreleased live clips mixed in there with backstage and in the studio videos from Scott's personal 8mm tapes. Most recent stuff on there was audio from the press conference and video from their recent appearance on Headbanger's Ball. Near the end there's the ending of "A New Level" from the Dimebag memorial show with Vinnie Paul on drums. A little bit over 18 mins long.
Oh, and how could I forget the clips of "Married with Children"? Well, I guess I didn't forget it.