chunk: The T-1000 and the Terminator engage in physical combat, with the advanced model severely damaging its adversary. The T-800 is seemingly shut down until its emergency back-up system brings it back online. The T-1000 nearly kills John and Sarah until the T-800 appears and shoots it into a vat of molten steel with an M79 grenade launcher, destroying it. John tosses the arm and CPU of the original Terminator into the vat as well. As Sarah expresses relief that the ordeal is over, the Terminator explains that to ensure that he is not used for reverse engineering he must also be destroyed. It asks Sarah to assist in lowering it into the vat of molten steel, since it is unable to "self-terminate", although John begs the Terminator to reconsider his decision. It bids them farewell as it is lowered into the vat. The Terminator gives a tearful John a final thumbs-up as it disappears into the molten steel and shuts down. Sarah looks to the future with hope, musing that "if a machine ... can