Picture the scene – a new underground line has been constructed unknowingly over an ancient burial ground and has released a terrible contagion. The Government has sealed all the underground entrances and exits to contain the infection. A special train with a container of microscopic Nano Robots has been sent in to destroy all monsters, but this train mysteriously disappeared. Our task is to find the container and to activate the Nano Robots – we are now the only hope to save the town.