The Will of Fire Still Burns!
Konohamaru locks himself in the office used by the 3rd to stop them from replacing his grandfather, the previous Hokage. Tsunade spends the day locked out of her office and researches a way to heal Rock Lee so he has a better chance of surviving the operation.
Aired 01/09/2004EP 99 - The Will of Fire Still Burns!

Naruto
Naruto Uzumaki, a hyperactive and knuckle-headed ninja, lives in Konohagakure, the Hidden Leaf village. Moments prior to his birth, a huge demon known as the Kyuubi, the Nine-tailed Fox, attacked Konohagakure and wreaked havoc. In order to put an end to the Kyuubi's rampage, the leader of the village, the 4th Hokage, sacrificed his life and sealed the monstrous beast inside the newborn Naruto.
Shunned because of the presence of the Kyuubi inside him, Naruto struggles to find his place in the village. He strives to become the Hokage of Konohagakure, and he meets many friends and foes along the way.
(Source: MAL Rewrite)