Terminator

In a continuation of the first two Terminator films, The Sarah Connor Chronicles follows the lives of Sarah and John Connor as they struggle to survive and prevent judgment day, the destruction of mankind by Skynet computers.

The Connors have allies in their fight: Cameron, a cyborg sent from the future; Derek Reese, John's uncle also from the future; and James Ellison, an FBI agent initially hunting the Connors until he becomes a believer.

Opposing them are agents sent by Skynet from the past, present and future, and a mysterious woman named Catherine Weaver who has aspirations of her own.