Destined leader John Conner — the target in Terminator 2: Judgment Day, who now runs a computer programming company — hacks into Cyberdyne Systems' computers and discovers top-secret operation "Skynet." Soon thereafter, two terminators are sent from the future: The T-800 (Arnold Schwarzenegger) is sent to protect him from the T-X, a nearly indestructible female terminator able to change shape and disappear altogether.

"T3" sees the return of Arnold Schwarzenegger as the T-800 model Terminator, a role he made famous nearly 20 years ago. Helmed by "Titanic" director James Cameron, 1984's original "Terminator" depicted Arnie as a murderous cyborg sent from a future ruled by machines to eliminate the mother (Linda Hamilton) of human resistance leader John Connor. Played by Edward Furlong, Connor was a teenager in the 1991 sequel, with a friendly, reprogrammed Arnie protecting him from a deadly new liquid-metal killer.