Hawaii Five-O S02 E23 Three Dead Cows At Makapuu (1)

"Book 'Em, Danno!"

Dr. Alexander Kline, a biological scientist, views his work as evil, and to prove it, he plans to unleash a deadly germ that would kill thousands. Three dead cows lead McGarrett on a desperate chase to track down the toxin, involving a friendly telephone operator and top Washington agents.