A mysterious suicide and a series of unmanned robot run-aways sparks off a Police investigation into the suspicious software on-board thousands of industrial robots around Tokyo. Step by step, the police find themselves tangled up by the web of a perfect crime which awaits the approaching Typhoon to activate thousands of virus affected robots. As time runs out, Asuma and his team must complete a task that is doomed to be a failure before the Typhoon lands Tokyo.