What is going to happen when Jesus returns?

[Fireball]

So what is supposed to happen, according to Christians, when Jesus returns?

From what I heard, some expect that the dead will rise from the graves and he will judge them (some Christians are even buying gravesites for themselves in the holy land, near the place of his return, so that he judges them among the first), and then he will destroy this world and create the new one populated only with Christians over which he will rule some thousand years.

But then some believe that Christians will start disappearing before he returns leaving only their clothes...

Is that it?

Why are the Christians disappearing while naked?

After all that "abstinence" here on earth? They're already on their way to saying "OMG!" forever.