"The Closed Route" (閉ざされた航路, Tozasareta Kōro) is episode 231 of the Naruto: Shippūden anime.
Shikamaru begins to feel the pressure of shouldering the lives of his friends in the upcoming Fourth Shinobi World War. To help ease his mind, Shikaku sends his son along with Tenten on a mission to Mokuzu Island to replenish supplies. On the island, Shikamaru meets up with Naruto's group. Soon after they set sail, the fog around the area gets thicker and they encounter reef systems, a huge rock and a whirlpools again and again. Shikamaru figures that their ship is sailing through the bay in circles and tells Naruto and the others to sail straight for it and get swallowed up. The criminal on seeing the ship wrecked arrives at the spot with his gang to loot the wreckage. Having stored the ship in Tenten's scroll, they proceed to defeat the criminals.
|Role||Seiyū||English Voice Actor|
|Naruto Uzumaki||Junko Takeuchi||竹内 順子||Takeuchi Junko||Maile Flanagan|
|Yamato||Rikiya Koyama||小山 力也||Koyama Rikiya||Matthew Mercer|
|Aoba Yamashiro||Kenjiro Tsuda||津田 健次郎||Tsuda Kenjirō||Wally Wingert|
|Might Guy||Masashi Ebara||江原 正士||Ebara Masashi||Skip Stellrecht|
|Shikamaru Nara||Shotaro Morikubo||森久保 祥太郎||Morikubo Shōtarō||Tom Gibis|
|Tenten||Yukari Tamura||田村 ゆかり||Tamura Yukari||Danielle Judovits|
|Shikaku Nara||Hiroshi Yanaka||家中 宏||Yanaka Hiroshi||Jonathan Fahn|
|Fifth Hokage: Tsunade||Masako Katsuki||勝生 真沙子||Katsuki Masako||Debi Mae West|
|Mozuku||Toshiharu Nakanishi||中西 としはる||Nakanishi Toshiharu||Kyle Hebert|
|Helmsman||Shinobu Matsumoto||松本 忍||Matsumoto Shinobu||Kirk Thornton|
|Villager||Ryuichi Kijima||木島 隆一||Kijima Ryūichi||Kyle Hebert|