Watch and learn. This is a philosopher who other philosophers seem to respect. It's the very best that the other side has to offer in the field of epistemology and philosophy of science.
Here's more stuff that I've written about Alvin Plantinga and his views. It's part of a larger discussion about the credibility of the entire field of philosophy of science.
What Do Philosophers Really Think About Arguments for the Existence of God(s)?
Boudry vs Plantinga
The Flying Spaghetti Monster Steals Meatballs (What's the Purpose of Philosophy?)
A Sophisticated Theologian Explains Why You Should Believe in God
Is Evolution Guided or Unguided?