That Goal is…!! (その目的は…!!, Sono Mokuteki wa…!!) is chapter 48 of the Naruto manga.
Fearful that the ninja will kill them all, Sasuke offers to give the ninja their scroll in exchange for their lives. Naruto attacks Sasuke and takes the scroll from him, believing he is an impostor since the real Sasuke would never give up so easily. Even if he is the real Sasuke, Naruto points out that there's no guarantee the ninja would spare them. The ninja agrees, summoning a snake to attack Naruto. As Naruto is batted around Sasuke pleas for Naruto to give up. Naruto, using the strength of the Nine-Tailed Demon Fox, quickly defeats the snake as it turns its attention towards Sasuke. Naruto mockingly asks if Sasuke has been hurt.