Plot
Set in contemporary London, a group of radical activists hijacks the energy company’s annual gala, taking 300 hostages to expose the hosts’ corruption. Their righteous cause is intercepted by an extremist in their ranks, who is ready to kill everyone in the building in order to send his anarchic message to the world. A former soldier-turned-window cleaner played by Ridley, suspended 50 stories outside the building, has to rescue those trapped inside, including her younger brother.