Viva, Training Group Challenge

When Naruto gets back from a mission he finds out that Lee has set up a dojo. After being attacked by Lee, Naruto runs away. He then meets up with Gai who asks Naruto about the dojo. Gai is proud of Lee but finds out that no one has come to challenge Lee. So, Gai decides to challenge Lee while in a disguise. Right as he is about to go challenge Lee he is called to go and help Shikamaru, Chouji, and Ino. A ninja then copies Gai’s form and acts as Gai. Naruto thinking it is Gai takes him to challenge Lee. What are the plans of this ninja and will Lee be able to defeat him?

Anime Series: Naruto