(Fred is writing formulas on her window with a dry-erase pen)

WESLEY: That's never good.

FRED: What? Oh, no, I... I just ran out of white board. I'm not crazy. Again.

GUNN: Just scary smart.

ANGEL: You really think this will bring Spike back?

FRED: Well, I had to extrapolate a new variation on interdimensional plasma dynamics on the fly, but... if the math holds...

ANGEL: All right. First we'll try to get Spike back, and then we'll deal with Pavayne.

FRED: Wait. For this to work, it's going to require a massive surge of dark energy to catalyze the process.

ANGEL: How massive?

FRED: The equivalent of nuclear evil.

ANGEL: Well, where the hell are we supposed to find that?

WESLEY: (switches to dramatic exposition mode) Well...there is a legend that tells of a volcano deep in the forbidden jungles of South Africa....

GUNN: (kill the dramatic music) Or... I might know a place a little closer to home.

written by: Steven S. DeKnight; Original transcript by CariCranberry. Edited & formatted by me.. Full transcript at:
http://www.buffyworld.com/angel/season5/transcripts/5x04_tran.php