Where No Man Has Gone Before

"For the similarly titled Star Trek: The Next Generation episode, please see 'Where No One Has Gone Before'.""Kirk's longtime friend and fellow officer Gary Mitchell develops astounding superhuman powers, eventually turning him against his own captain and shipmates.""Where No Man Has Gone Before" is the third episode of the first season of Star Trek: The Original Series. The second pilot of the show produced, it initially aired on NBC on 22 September, 1966.