While we wait for more Trek we are starting our Time Travel Retrospective Series. Join us as we talk about all of the Star Trek episodes that deal with characters moving in time. This week we continue with the TOS episode "City on the Edge of Forever"!Written by: Harlan EllisonDirected by: Joseph PevneyWhen a temporarily insane Dr. McCoy accidentally changes history and destroys his time, Kirk and Spock follow him to prevent the disaster, but the price to do so is high.