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is episode 56 of the Naruto: Shippūden anime.

Synopsis
Naruto and his clones continue to work on chakra nature manipulation by slicing leaves. After some struggling, Naruto approaches Asuma, who is also a wind type, for advice. After which, Naruto is subsequently able to slice a leaf in half. He then tries to cut a water fall in half, after the leaf. Asuma and Yamato then head out with their teams on new missions. It is revealed that Asuma is the Third Hokage's son and that he is in a relationship with Kurenai. Meanwhile, on a hill overlooking a burnt village, four cloaked figures discuss the awakening of the Land of Fire by eliminating Konoha.