Naruto Shippūden: Season 15, Episode 326

15 - 326: Four Tails, the King of Sage Monkeys

Kakashi and Guy arrive in the nick of time to back up Naruto and Killer Bee. The fight intensifies even further when three out of the six Reanimated Jinchuriki enter Tailed Beast State, forcing Naruto and the others to throw in everything they’ve got.