Kakashi Hatake and Might Guy join the fight but, despite their assistance, Naruto and Killer Bee cannot stop the tailed beasts controlled by Tobi. When Naruto is swallowed by Son Gokū the Four-Tails, he removes the piercing in his body which Tobi used to control it. The nine-tailed fox Kurama joins forces with Naruto for the first time, allowing him to stop the other five tailed-beasts. While reinforcements from the alliance assist Naruto, the five Kages continue their losing battle against Madara and Sasuke learns about the war.