Search for Tsunade

Episodes 86—100, Chapters 149—171: This arc covers Naruto's and Jiraiya's search for Tsunade, so they can offer her the role of Fifth Hokage. In the meantime, Orochimaru and Kabuto also search for her, aiming to convince her to heal Orochimaru's arms. This arc also includes Naruto's introduction to and learning of his signature move - the Rasengan.