Need help finding retopology tutorial series in CGCookie

Few months ago or last year, CGCookie used to have a tutorial video series which discusses about retopology. I only watched the first bit where Johnathan held a talk about it for 45 minutes.

If anyone can remember that video, can you guys link me the series or otherwise the remaining videos in the series? For some reason, CGCookie decided to group most old videos into the archives and I had a hard time trying to find the said video.

Thanks in advance.