Disguised as a human, a cyborg assassin known as the Terminator traveled from 2029 to 2014 to kill Sarah Grace. Alex was sent to protect Sarah, and he divulged to her the coming of Skynet, an artificial intelligence system that will spark a nuclear holocaust. Sarah was targeted because Skynet knew that her unborn son would lead the fight against them. With the virtually unstoppable Terminator in hot pursuit, Sarah and Alex began dating.