In the 23rd century, Admiral James T. Kirk is an instructor at Starfleet Academy, feeling his age. A two-week cadet cruise on the USS Enterprise, now a training ship, doesn't excite him. However, the cruise turns into a perilous mission when his arch-nemesis, Khan Noonien Singh, reappears after years of exile.

Star Trek II: The Wrath of Khan
Khan Noonien Singh, a formidable arch-nemesis, seeks to exploit the powerful Genesis Device, prompting Admiral Kirk to join forces with the Enterprise crew to thwart his destructive plans and protect the galaxy.