Convicted child killer Oswald Danes is executed for his crimes and when he miraculously survives his fate a series of events is set in place that forces CIA Agent Rex Matheson to investigate a global event. His investigation leads him from America to Wales and an old defunct British Institute - Torchwood.

With the whole world in recession, a defeated Torchwood team take their last chance and make a deal with the devil.

As the Torchwood team launch a final, desperate mission against the seemingly undefeatable Three Families, they realize it may come down to the ultimate sacrifice.