Naruto: Shippūden (2007)

S12E245 The Next Challenge! Naruto vs. The Nine Tails!

Under the guidance of Killer Bee, Naruto embarks on a journey to master the formidable strength of a Tailed Beast. To harness this power, he must confront the Tailed Beast directly, engaging in a battle to absorb its chakra and transform it into his own energy.