The fifth feature film to spin out of the immensely popular Naruto franchise, Naruto Shippuden: Kizuna is the biggest hit of the series yet. Released in Japan in summer 2008, the film directed by Kamegaki Hajime brought in over two billion yen at the box office. A mysterious group of flying ninjas from Sky Country, which was devastated by Konoha during the last Shinobi World War, launches a surprise attack on Konoha & the Fire Country looking for revenge. Naruto, Sakura, & Hinata head to Fire Country with a doctor & young boy named Amaru to help the injured people in his village, but the journey turns out to be one of perils & revelations. Meanwhile, back in Konoha, Shikamaru & the other ninjas prepare to attack back.