Evolutionary Argument Against Naturalism

Philosopher Alvin Plantinga gives his defeater of naturalism. I have to say, it is one of the most clever arguments I have ever heard. I takes evolution, which, to me, seems indespensable to naturalism (how did all of this fauna and flora come about?, as Plantinga would say) and makes it an argument against naturalism. The sound isn't fantastic but its the best example available online. It comes in five parts (so roughly a fifty minute lecture). A tab should appear on the screen to take you to the new part.

Part I http://www.youtube.com/watch?v=uWVoi_IjTKs&feature=related