The second film in this timely and enthralling two-part documentary series reveals how Britain and America discovered compelling evidence that Pakistan was secretly helping the Taliban and concluded they had been double-crossed.
It tells the story of how under President Obama the US has waged a secret war against Pakistan. Taliban commanders tell the film makers that to this day Pakistan shelters and arms them, and helps them kill Western troops - indeed one recently captured suicide bomber alleges he was trained by Pakistani intelligence.
Chillingly, the film also reveals that, based on some evidence, Pakistani intelligence stands accused of sabotaging possible peace talks. Pakistan denies these charges, but relations between Pakistan and America now verge on hostility.