Grace Harper's History
Original timeline
Post-Judgment Day
Grace was a child when Legion initiated Judgment Day. She witnessed various tragedies, starting with witnessing a plane crashing onto the ground. Her father was killed by other survivors over a can of peaches. Years later, she was attacked by another group of rogue survivors, but she was saved by Dani Ramos, who told those attackers that preying upon other survivors was what Legion wanted, which would make the human race become extinct much quicker. Convinced, these survivors decided to join Dani's Resistance to fight against Legion. Since then, Grace had stayed with Dani, while Dani raised Grace like her own daughter.
At a certain point, Dani was wounded during a battle. Grace, along with the squad led by William Hadrell, escorted Dani back to base on Dragonfly 3. After landing, the transport was destroyed by the enemy force, and the Resistance soldiers began to fight multiple Rev-7 units. Grace was ordered by Hardrell to bring Dani back to base. However, Grace was seriously wounded while protecting Dani, but she succeeded in her mission. After she was brought back into the base, Grace volunteered to become Augmented.
In 2042, Grace and her unit captured a TD Chamber, neutralizing every unit within the chamber. However, they found that a Rev-9 had been sent back in time to 2020 to kill the younger Dani. Grace volunteered for the time travel mission to 2020 to protect the younger Dani, while Dani was reluctant but granted her request after Grace's begging.
Terminator: Dark Fate 2020
After Grace arrived Mexico in 2020, she was helped by a couple before she attacked policemen, who tried to take her from the scene. Grace then took clothes from the man who helped her and left the place with the couple's car.
She managed to find the young Dani Ramos and her brother Diego Ramos in the factory where they worked. She rescued them from Rev-9. However, after a car chased, Diego was killed by the machine. Sarah Connor arrived at the scene and saved them, only to find that her car was stolen by Grace to take Dani away. They were reacquired by Sarah outside a drug store after Grace crushed due to the intense battle with the Rev-9.
She was unwilling but agreed with Sarah's volunteer to help Dani. After learning the location, where the mysterious texts sent to Sarah were from, was the same with the coordinate tattooed on her belly, they decided to travel to Texas in United States with the help from Felipe Gandal and his son Flacco, only to be attacked by the Rev-9 with a UAV drone before being arrested by the United States Border Patrol. After escape the detention center, they arrived the coordinate, only to found it was the home to Carl, a CSM-101 Infiltrator, who was responsible for the death of John Connor, Sarah's son.
Carl agreed to help the women as he believed in fate, considering Sarah's action to destroy Skynet had set him free. After acquired two EMP generators from Major Dean, they were attacked by the Rev-9. With Dean's help, they managed to board a C-5 cargo plane after the Rev-9's pursuit and attack, which destroyed the EMP generators.
They were attacked again when being attacked by the Rev-9 in its hijacked aerial refueling aircraft. After the battle, they escaped the plane in a Humvee and landed in a hydroelectric dam. After regrouped with Carl, Dani called the ground as their kill box against the Rev-9.
In the ensuing battle, both Grace and Carl sacrificed themselves to successfully destroy the Rev-9 in the dam.
