Post Chosen Time Loop

There's a fic set in Chosen where Buffy runs back into the high school to get Spike out and fails, but somehow triggers a time loop where she keeps trying different ways to get him safely out of the crater until she finally succeeds.

That's all I can remember.

Help?

When I didn't get a response here I tried Seeking Spike on LJ and luckily Rebcake recognized it. The fic I was looking for is Domino Effect by anaross

Brilliant! I really fancied the sound of that.

Thanks for keeping at it Peyton. I was just thinking about that story yesterday and couldn't remember the the name or author. I'm off to reread it!