Turn out the lights, hide in the shadows, and enter the secretive realm of the infamous ninja. We explore the untold history of these shadow soldiers; from their formation in the 14th Century to their battles against Samurai forces, led by ninja master Tanba, one of the most feared warriors in ancient Japan. Uncover guarded ninja techniques in spying, sabotage and ruthless undercover warfare, tactics that have earned them a reputation in their homeland as both heroic fighters and cunning, cold-hearted killers.