2029, the Skynet cyborg army continues to wage war against the human resistance, led by the legendary John Connor. Skynet devises a new plan: send Terminators, who appear as humans, back in time to assassinate resistance leaders. In 1984, the first Terminator, a metal endoskeleton T-800, is sent to kill Sarah Connor and her unborn son. This mission fails, as the Resistance is also able to send a lone human protector to defend her. Ten years later, Skynet sends a newer, more formidable Terminator, the liquid metal T-1000, to eliminate the young John Connor. Once again, the Resistance sends a protector, but this time, they send a captured and reprogrammed T-800 to defend the boy. Winning John's trust, the T-800 is instrumental in the defeat of the T-1000, and learns the human traits of compassion, humor and tragically, self-sacrifice.