John Connor is now in his 20s, and a female terminator, called T X or Terminatrix, is after him. Another T 101 is sent back through time to protect John once again on the verge of the rise of the machines.

Two contrasting open-cast coalmines in America use some of the largest machines of their kinds to be found anywhere.
At the Belle Ayr mine, Gillette, Wyoming, one of the world’s biggest electric shovels, the P&H 4100XPB, is removing overburden above the coal seams.
It dwarfs the Caterpillar 797B haul trucks it loads, even though these are the largest mechanically driven trucks in the world.

More than 10 years after 'Terminator 2', John Connor now exists only as a drifter - living 'off the grid', so no more Terminators from the future can hunt him down. Unfortunately, SkyNet does send another one back - and this one is called the T-X, even more powerful & advanced than the dreaded T-1000. However, another CSM-101 Terminator is also sent back to protect John against the T-X. Now, Skynet is patiently assuming control of civilian computer systems, under the guise of a computer virus. John has also met his future wife, Kate Brewster, whose father - a U.S. Air Force General - is in charge of the military computer systems & is leery of up linking SkyNet. However, when the SkyNet virus infects the U.S military computers & leaves the country open to attack, the machines begin their horrific takeover. Soon a nuclear war will result - and the war against the machines will begin. Can the outdated CSM-101 Terminator eliminate the highly advanced T-X - or will a darker future await man following the nuclear attack?