The robot is then revealed to be a mechanical replica of Naruto, whom is named Mecha-Naruto.Mecha-Naruto begins siphoning Naruto's Nine Tails chakra, causing Naruto to lose his strength.Sent into Konoha, the robot begins its search for Naruto while attacking several villagers and defeating Team Guy.
Seeing Obito return to their reality, lamenting not fighting Hashirama prior and that his apprentice outlived his purpose, Madara forces Obito to use the Samsara of Heavenly Life so he can be resurrected and become the Ten Tails Jinchuriki.
Producing a Shadow Clone to help Naruto and Sasuke stop Obito while Hashirama and Tobirama deal with Madara, Minato learns his former apprentice was the masked ninja from the night of his death.
But matters worsen when Obito reveals he retained control of himself as he frees the Ten Tails before absorbing it to become a Jinchuriki.
Months prior to Sasuke defeating him, Orochimaru conducts an experiment where he used lightning to bring a robotic being to life.
In the Hokage's office, Tsunade devises a plan to lure Mecha-Naruto away from the village: Naruto rides away from the village in a palanquin with Yamato while Choji, Kiba, Neji, and Shikamaru act as bearers and Kakashi as backup.
The plan is put into action and Mecha-Naruto starts pursuing the palanquin.
Sai, who is also determined to become capable and stronger, decides to attack Ten Tails' head by himself but is unsuccessful and quickly saved by Naruto.
Sai discloses his worries about having to cover too much ground between the alliance and the main body of the Ten Tails, and in response, Naruto, Sasuke and Sakura summon Gamakichi, Aoda and Katsuyu, respectively, to help on the battlefield.
Shino, not wanting to be left behind like last time, attempts to distract Mecha Naruto before being defeated.
The group decides to escape into the forest with Shikamaru switching places with Kakashi in a futile attempt to defeat Mecha-Naruto.
But the monster severs the burning part of its body to escape death.