When an elderly Spock (Leonard Nimoy) learns of a time-traveling assassination plot by the crazed Romulan Nero (Eric Bana), the Vulcan also goes back in time to stop him. Meanwhile, back in his early Starfleet Academy days, the young Spock (Zachary Quinto) is forced to turn in one of his fellow students, the rule-breaking James T. Kirk (Chris Pine), when he finds him tampering with the school's highest test, the dreaded Kobayashi Maru simulation.
