I went on one probably five or six years ago, so this may not be that helpful now, but I remember the tour including (not in this order though):

• Standing in the North Stand to look out onto the pitch
• The home changing room
• Coming past the post-match interview area, out of the tunnel then walking alongside the pitch to the dugout
• The clock memorial to the Munich crash victims and the Holy Trinity statue
• The museum with all the trophies etc.

You'll walk between these, so obviously it includes more than what I've included, and as I said, it will probably be a bit different now from what I remember and what I've written. Hopefully this should give you a bit of an idea though.