Star Trek II: The Wrath of Khan
Admiral Kirk, doubting his place after a cadet training cruise, faces Khan, who has escaped Ceti Alpha V and seized the Reliant and the Genesis terraforming device. The Enterprise and Khan duel in the Mutara Nebula, and Spock sacrifices himself to save the ship. The nebula's matter forms the Genesis Planet.
Planets in it
Characters in it
James T. Kirk, Spock, Leonard McCoy, Montgomery Scott, Nyota Uhura, Hikaru Sulu, Pavel Chekov, Saavik, Khan Noonien Singh, Carol Marcus