It's been 10 years since John Connor saved Earth from Judgment Day, and he's now living under the radar, steering clear of using anything Skynet can trace. That is, until he encounters T-X, a robotic assassin ordered to finish what T-1000 started. Good thing Connor's former nemesis, the Terminator, is back to aid the now-adult Connor ... just like he promised.
With their father away as a chaplain in the Civil War, Jo, Meg, Beth and Amy grow up with their mother in somewhat reduced circumstances. They are a close family who inevitably have their squabbles and tragedies. But the bond holds even when, later, male friends start to become a part of the household.