While Sarah, John and Cameron track another name from their list, they accidentally cross paths with T-1001. Meanwhile, a woman who Derek once knew in the past surprises him by appearing in the present.

Sarah finds that the strange dreams she's been having while she sleeps are slowly beginning to creep into her waking life, but she has no idea what the dreams mean for her and John. Derek and Jesse investigate a possible Skynet conspirator.

Sarah's quest to find the meaning behind the "three dots" leads to a technology firm seeking an advanced microchip. Meanwhile, Jesse comes clean to Derek about her mission and Weaver makes an important introduction.