sentences:  By the season finale, it is revealed that the Turk was a red herring, while Skynet is operating as a roving worm on home computers as in "Terminator 3", and the Turk has been developed into a benevolent rival AI which Catherine Weaver hoped would be able to defeat Skynet.Her exact motive against Skynet is unknown.John Henry's "brother" is apparently behind the company Kaliba, which is responsible for constructing the Hunter-Killer prototype.