On the day of James Kirk's birth, his father dies on his ship in a last stand against a mysterious alien vessel. He was looking for Ambassador Spock, who is a child on Vulcan at that time, disdained by his neighbors for his half-human nature. Twenty years later, Kirk has grown into a young troublemaker inspired by Capt. Christopher Pike to fulfill his potential in Starfleet even as he annoys his instructors like young Lt. Spock.