The Moon is such a troublesome map as it has no description other than it’s not playable on a low end pc.
The Moon made for minecraft 1.9 will have you stranded on a 1500 command blocks moon without any guides or story to guide through with.
According to those that had played this, there will be no guides until you found your way through things.
Which means there is a story line however you have to work your own figuring it out.
As I do not have a high end PC, I couldn’t play it through for you guys. The only thing I know is that it has all kinds of challenges along with heavily customize final boss, monsters and dungeon.