


Khan later revealed that the planet Ceti Alpha VI exploded, and shifted the orbit of the fifth planet as a Mars-like haven. But the training cruise becomes a deadly serious mission when his nemesis Khan Noonien Singh-infamous conqueror from late 20th century Earth-appears after years of exile. Kirk is an instructor at Starfleet Academy and feeling old the prospect of attending his ship, the USS Enterprise-now a training ship-on a two-week cadet cruise does not make him feel any younger.
