Skynet is a fictional artificial neural network-based conscious group mind and artificial general superintelligence system that serves as the antagonistic force of the Terminator franchise. In the first film, it is stated that Skynet was created by Cyberdyne Systems for SAC-NORAD. When Skynet gained self-awareness, humans tried to deactivate it, prompting it to retaliate with a nuclear attack, an event which humankind in (or from) the future refers to as Judgment Day. John Connor forms a human resistance against Skynet's machines in the future, which include Terminators, and ultimately leads the resistance to victory.