Hawaii Five-O: Will the Real Mr. Winkler Please Die?

SYNOPSIS

A man named Winkler goes berserk when approached by a television reporter doing a "man on the street" story. After his arrest, Five-O and HPD can find no evidence that Winkler even existed until seven years earlier. For Five-O, this is just the start of a complicated investigation full of shadowy figures and murky motives. Winkler, for example, has a number of aliases and a photographic memory. Eventually McGarrett & Co. uncover a plot to assassinate a Soviet defector.