The series picks up four years after the events of Terminator 2: Judgment Day with John and Sarah Connor trying to stay under-the-radar from the government, as they plot to destroy the computer network, Skynet, in hopes of preventing Armageddon.

In 2019, Lincoln Six-Echo is a resident of a seemingly "Utopian" but contained facility. Like all of the inhabitants of this carefully-controlled environment, Lincoln hopes to be chosen to go to The Island — reportedly the last uncontaminated location on the planet. But Lincoln soon discovers that everything about his existence is a lie.