This segment of the popular series examines the theory that the infamous Unabomber and the notorious "Zodiac" killer were the same man - Ted Kaczynski. Hosted by actor Robert Stack, the segment also features theorists Doug Oswell and Mike Rusconi, co-authors of the book that presents the theory of a possible connection, and Robert Graysmith (author of ZODIAC and ZODIAC UNMASKED).