Completely Summarize the Story?

[PSPForDummies]

Could someone please summarize the story completely? There's a shiesta load of sotry that I just can't seem to put together, like what really is the Deep Dive city/ World that Never Was? And why is Mickey there? I'm confused. 3 Ansems? DiZ, Xenohartah..hard...xenahardon... yeah and Ansem?

Please, someone explain

 

[violent_anger]

well to start, the ansem in kh1 was not ansem, he was a guy with amnesia who thought that he himself was ansem, Diz is this

And I have lost everything, exiled to a nonexistent world.

Having exiled me, what could Xehanort be aiming for?
Have everyone's smiling faces gone?

As the light of hope has faded, I will now walk along with the darkness.
In the world of nothingness to which I have been exiled.

Darkness within nothingness.
"Darkness in Zero"

Therefore, I will take the name "DiZ".
I will cast aside the exile's name "Ansem"...and have my revenge.

DiZ is the true ansem, after ansem was kicked out