The only problem is that when he returns to Los Angeles looking for his son because he�s finally found this magical spell that will do it, he finds that his son, Francis Doyle, is dead. And he blames Angel.

That�s a good one, isn�t it? Well, it�s huge, and it�s great because we�ve got this huge sub-plot with Gunn. Gunn has his own story running through the background with a kid named Calvin, a teenager from his neighbourhood whose parents were killed by vampires... well, it�s more complicated than that. We�ve got a lot of other stuff going on, it�s the first time some of these characters have met. But also, things like, what would a conversation between Fred and Tara be like? - Christopher Golden at Buffy BBC.