Intelligence agencies have located and neutralised a famous terrorist, who had been hiding in a troubled area of the city for more than ten years. But this is where the good news ends. It turns out the maniac has installed a rocket fitted with a timer and a nuclear warhead on the roof of an abandoned skyscraper! And the building itself has been turned into a tower filled with ingenious traps and obstacles. You came highly recommended as specialists in similar riddles, so the secret service has helped you to enter the courtyard. Now — you are on your own. Can you bypass all the traps and prevent a nuclear strike?