Located in the current London, the group of radical activists take the annual celebration of the energy company, hijacking 300 hostages to reveal the corruption of the hosts. His fair reason is kidnapped by an extremist in his ranks, who is ready to kill everyone in the building to send his anarchic message to the world. It falls into a former soldier’s window cleaner played by Daisy Ridley, stopped 50 floors behind the building to save those prisoners, including his younger brother.