I have been playing catch-up with this series on DVD because I don't get the SciFi channel. When I got to the end of season 3 I was mad that I had to wait so long for season 4 to appear, especially in light of the writers strike. When I saw this, which people say is actually the first 2 episodes of season 4 (not sure???) I grabbed it. It's a great way to "fill in" while waiting for the rest of the series to wrap up since it is a prequel to events that have already occurred and doesn't give anything away. Nicely done.