"Miscalculation: A New Enemy Appears!" (失策!新たなる敵, Shissaku! Aratanaru Teki) is episode 119 of the original Naruto anime.
As Sakon chases Naruto, Shikamaru and Kiba, Akamaru has been setting traps using explosive tags. After getting hit by one, Sakon retaliates by trapping Akamaru, who is standing next to an explosive tag. Kiba jumps down to save Akamaru and Sakon heads after Kiba. As the tag explodes, Sakon, Kiba and Akamaru both plummet off the end of a cliff and fall down. Before Naruto and Shikamaru can further assess the situation, Tayuya comes after them. However, she stops her attack when she instantly notices Kimimaro, who has snuck up behind Naruto and Shikamaru. He manages to kick the container containing Sasuke off the tree branch and goes after it, catching it. Telling Tayuya that she has disappointed Orochimaru, he wishes to kill her; however, he tells her he will refrain from doing so as she has a duty to perform. Taking Sasuke with him, Kimimaro instructs Tayuya to eliminate Naruto and Shikamaru.
As they cannot let Sasuke get away, Shikamaru and Naruto devise a strategy; Naruto and Shikamaru rush toward Tayuya, but Shikamaru pulls back at the last second while Naruto soars over Tayuya. As Tayuya stands there confused, Shikamaru attempts to trap her using his Shadow Imitation Technique, but Tayuya manages to avoid being caught just in time. However, Naruto manages to get away, and follows Kimimaro. His anger towards the Sound Four and Kimimaro causes him to release some of the Nine-Tails' chakra. Naruto manages to catch up to Kimimaro in a clearing, and the latter is surprised to see that Naruto possesses much more chakra than most. Naruto demands to know why Orochimaru wants Sasuke. Kimimaro explains that Orochimaru wishes to live forever; while his soul can live forever, his body cannot, therefore Orochimaru must need new host bodies to use as vessels. Angered that Orochimaru is planning to take over Sasuke's body, Naruto uses the Nine-Tailed Fox's chakra to produce a thousand shadow clones. Back in the forest, Tayuya mocks Shikamaru's leadership, believing he has sacrificed a member of his team every time they engage one of the Sound Four one-on-one. Shikamaru states that he does not believe any of his team members are dead, and tells Tayuya not to insult them. Tayuya responds by summoning three giants, whom she controls with her Demonic Flute. At the same time, Kiba is fighting Sakon, who manages to kick Kiba away.