In 1945, Hitler unleashes the Blood Death on Britain as a final act of vengeance Only a tiny minority with a rare blood group survive the deadly disease Amongst them is Hoke, an American pilot Now, in '48, a slow-dying group of Fascist Blackshirts believe their only hope is a complete transfusion - and they're after his blood Hoke and other survivors are pursued in a dramatic but deadly chase through London's streets