Exactly twenty-five years after the elimination of Skynet's nuclear threat in Terminator 2: Judgment Day (1991), another seemingly unimportant human--this time, the unsuspecting car assembly worker, Dani Ramos--sets in motion a murderous plan against humankind, devised by the tyrannical machines from the future. Once more, the self-aware computer system sends back in time its most sophisticated android assassin--the nearly indestructible terminator made of advanced mimetic poly-alloy, Rev-9--to exterminate young Dani in 2020 Mexico City. However, from the distant 2042, a fearless protector arrives--the bionically enhanced Resistance fighter, Grace--who, to ensure Dani's survival, reluctantly joins forces with an unexpected ally, and a battle-tested defender from the past: the armed-to-the-teeth, Sarah Connor. With Sarah's sacrifice, the world never had to face the aftermath of Judgment Day. Can the trio of guardians rewrite history, again?