To keep the universe from collapsing, a reunited "Enterprise" crew must save Spock's son from the past. Read by Leonard Nimoy and James Doohan, this is the story of the crew's mission to Gateway, their goal being to bring Zar out of the past to contact the Guardian of Forever and save civilization.To keep the universe from collapsing, a reunited "Enterprise" crew must save Spock's son from the past. Read by Leonard Nimoy and James Doohan, this is the story of the crew's mission to Gateway, their goal being to bring Zar out of the past to contact the Guardian of Forever and save civilization.