Terminator: Dark Fate follows the story of a young female Mexican worker, Dani Ramos, who is being hunted down by a virtually indestructible terminator from the future known as a REV-9. She finds protection in an enhanced human named Grace, who is also from the future.
Together, they flee from the relentless terminator, and unexpectedly, Sarah Connor joins them on their journey. The trio makes their way to Laredo, Texas, where Grace has the coordinates of a potential ally. There, they encounter a T-800 living in seclusion with his family.
The group bands together in an attempt to destroy the REV-9 and put an end to the threat it poses.