Kurenai's Decision: Team 8 Left Behind

is episode 203 of the original Naruto anime.

Synopsis
Naruto encounters a girl named Yakumo, who, by drawing a picture of Konoha, causes lightning to strike Tsunade's mansion. Shortly thereafter, Kurenai Yuhi resigns as leader of Team 8, and Naruto is determined to find out why. Later that night, Naruto - disguised as Kurenai - goes into Yakumo's mansion and discovers a room full of Yakumo's paintings. He escapes after one of the paintings nearly kills him, and is confronted by security, who tranquillise him.