In the early months of 1966, a handsome, hardworking thirty-five-year-old Canadian-born actor named William Shatner was cast as Captain Kirk in Star Trek, a troubled, low-budget science-fiction television series set to premiere that fall on NBC. Star Trek struggled for viewers and lasted only three seasons, but it found a huge, rabidly dedicated audience when it premiered in syndication following its cancellation--turning Shatner into a pop-culture...