John Connor young John is skeptical of his mother's claims of his fate as humanity's leader. One day, while in an arcade with a friend, the T-1000 (Robert Patrick) and the T-800 (Schwarzenegger) - a reprogrammed android sent by John's future self, fight over him. This starts a chase sequence where the T-800 and John try to lose the T-1000; this event validates John's mother's warning to him about Skynet. Later that night, his mother breaks out and he and the T-800 go to save her, and the three escape. John teaches The Terminator how to be like a human; teaching him
T-1000 reform and reshape itself at will, due to its "cells" having been programmed by Skynet with on-board nanotechnology. This technology can be programmed with commands from Skynet, and can help the T-1000 scan the cellular makeup of whatever it is touching (including the DNA of living animals), and can magnetically attract broken off pieces of itself back to the main body. The T-1000's weaknesses are extreme temperatures and its overall lack of knowledge concerning other Terminators. When it was frozen solid from a coating of liquid nitrogen, it could not move; it was then shot by the Terminator and split