It's an alternate universe kind of thing. Drusilla was less than pleased after "Crush". She made a few stops before leaving town. Now, Giles has to learn to cope in a whole new world, while at the same time keeping his old world from falling to Glory.

Be all that you can be

Day of wrath, O day of mourning, See fulfilled the prophet’s warning, Heaven and earth in ashes burning.

They needed a warrior for their cause. They picked Xander Harris. One magical rune later, there are ex-girlfriends, Chaos mages, sex, alchohol, seduction, and doubles exploding everywhere. This wasn't what quite the PTB had in mind. Xander-Spike. SLASH

Exactly what it says on the tin!