A time traveler from the future was stranded in Victorian England, and his knowledge of yet unknown technological inventions was passed to the Royal Society, headed by Baron Fortesque. With the help of this knowledge, Fortesque managed to construct an immensely complex artificial intelligence known as the Chaos Engine. However, creation rebelled against its creator, assimilated its mind, and turned Britain into a war zone populated by mad machines. Mercenaries are willing to enter this dangerous place and put an end to the chaos, hoping for an appropriate reward.