Free Will vs. Determinism and Alvin Plantinga's free will defense

I was reading the Free Will vs. Determinism thread and it occurred to me that Alvin Plantinga's free will defense (see wikipedia for example) to the problem of evil seems to presuppose libertarian free will but that all the evidence points to a deterministic world.

Does Plantinga's free will defense to the problem of evil fall apart in the face of determinism?