The Terminator 1-4  .

A robotic assassin from a post-apocalyptic future travels back in time to eliminate a waitress, whose son will grow up and lead humanity in a war againt machines.
       A cyborg is sent from the future on a deadly mission. He has to kill Sarah Connor, a young woman whose life will have a great significance in year to come. Sarah has only one protector - Kyle Reese - also sent from the future. The Terminator uses his exceptional intelligence and strength to find Sarah, but is there any way to stop the seemingly indestructible cyborg ?