Fan Casting Terminator 2: Judgment Day (1971)

After the defeat of the T-800 in the last film, Sarah Connor has been in a mental institution, John Connor is now born and a delinquent, and the future is still ruled by machines. This time, they send a new Terminator, the T-1000, to try and kill John as a young boy. Because of this, his future self sends a reprogrammed T-800 to protect him. With this, John, the T-800, and Sarah realize that they must stop the horrible apocalyptic future while they still can.