At the end of "Terminator 2", Sarah defeats the Terminator from the future and protects her young son, John. In the spin-off series "The Sarah Connor Chronicles", Sarah and John will be in danger and dependent on each other. Without legal protection, they not only have to face threats from the future, but now also find themselves surrounded by crises at every turn.
In "The Sarah Connor Chronicles", Sarah faces newly evolved Terminators that aim not only to destroy her life, but also threaten to destroy the entire world. Sarah's son, 15-year-old John Connor, knows he is destined to save the future of humanity, but is not yet ready to shoulder this responsibility. Meanwhile, John is drawn to Cameron, a mysterious classmate from another world who fearlessly protects both Sarah and John. A tough and intelligent FBI agent, James Ellison, relentlessly investigates Sarah but soon becomes a powerful ally to them.
The Terminators in the series continue to evolve and possess immense power, presenting challenges for Sarah that far exceed her imagination. Can Sarah protect herself and her son while saving humanity from destruction?