Dark Futures (Terminator 2: The New John Connor Chronicles, Book 1)

After the events of "Terminator 2: Judgment Day, " Sarah Connor and her son, John, think they've altered the timeline so that neither the artificially intelligent satellite SkyNet nor its Terminator killing machines can ever be created. So why are they being hunted by yet another Terminator that's traveled back in time to ensure that John never grows up to be the charismatic leader of the few humans who survived Judgment Day? (August)