Terminator 2: Judgment Day
Plot
A human soldier is sent from 2029 to 1984 to stop an almost indestructible cyborg killing machine, sent from the same year, which has been programmed to execute a young woman whose unborn son is the key to humanity's future salvation.
Plot
A cyborg, identical to the one who failed to kill Sarah Connor, must now protect her teenage son, John Connor, from a more advanced and powerful cyborg.