Tons of plotting. But if someone is going to go up against Angelus, they'd better get their plot on. Spike knows just how dangerous Angelus can be when he wants something, and he wants his clan back. And I will admit that Jenny is probably getting a little help, but I'm not giving you more than that.

And I doubt Angelus would go to Sunnydale. There is too much danger for too little payoff. He wants Xander, Faith, and Spike, and no one in Sunnydale would be GOOD leverage.