After Skynet gained independent consciousness, it launched a bloody massacre against the humans who created it. In the years that followed, John Connor (Jason Clarke) led his comrades and Skynet's robot army in a protracted war. After a crucial battle, Skynet sent the Terminator to Los Angeles in 1984 in an attempt to kill John's mother Sarah (Emilia Clarke). John sent his closest comrade-in-arms, who was also his biological father, Kyle Reese (Jai Courtney). Kyle was attacked by the liquid metal Terminator T-1000 (Lee Byung-hun) as soon as he arrived in Los Angeles. At the same time, "Daddy" (Arnold Schwarzenegger) teamed up with Sarah to kill the Terminator T-800 (Arnold Schwarzenegger). It seems that things in the past have changed quietly. Kyle gets inspiration from his experience in time travel and travels to 2017 with Sarah to try to prevent the birth of Skynet...