Seasons & episodes
S4 · E114The Storm Guardian, Stands 2008-12-27 · 25 min
Ryohei manages to heal himself and continues his battle with Gamma. He is however defeated by Gamma's Electric Tower technique. Gokudera is free from the ropes and reveals his Sistema C.A.I.
S4 · E115SISTEMA C.A.I 2009-01-10 · 25 min
Gokudera talks about his Sistema C.A.I. and explains how he discovered its use. Hibari continues his way into the subway and uses his box weapon to trap the Millefiore members on the other side. Spanner explains to Tsuna that he will create contact lenses so Tsuna would be able to measure his flame power on his gloves and help him balance his X-burner.
S4 · E116Difference in Resolve 2009-01-17 · 25 min
Gamma manages to open a box to unleash his box animal powers, turning his foxes black in color. Gokudera is defeated, but Gokudera's box animal Uri comes out of Kangayuu's pouch charged with Sun flames as a lepord to defend him.
S4 · E117Storm Fights Back 2009-01-24 · 25 min
It is revealed the Sun flames from Ryohei's box animal was used by Uri to transform. Uri manages to hold back Gamma's box animals while Gokudera deals with Gamma. Meanwhile, Gamma remembers when his family was separate from the Millefiore. In his memory, the boss just died, and her daughter Yuni is the heir.
S4 · E118The Princess's Conviction 2009-01-31 · 25 min
In Gamma's memory, after a failed bargaining with the Millefiore Family, Genkishi returns with injuries to the Giglio Nero family. Yuni decides to meet with Byakuran to prevent any more of her subordinates being hurt. After meeting with him privately, Yuni returns emotionless and a loyal servant to Byakuran. Gamma mentions how Genkishi was the biggest traitor to the Giglio Nero Family and how he wants to defeat Byakuran.
S4 · E119Interval Between Battles 2009-02-07 · 25 min
Lal Mirch recaps what has happened during their invasion of the Milliefiore base up to the point Gokudera's and Gamma's battle.
S4 · E120Virtual Space 2009-02-14 · 25 min
Tsuna needs to be placed in battle so the contacts can be adjusted for the X-burner. Tsuna puts on gears that puts him in a virtual space to fight Moscas; he could die if he dies in that space. Later, Irie Shouichi moves the base again and places a virus in the virtual space and Tsuna must defeat it.
S4 · E121Two Battles 2009-02-21 · 25 min
Yamamoto runs into the same black spell member Nosaru. Meanwhile, Tsuna after a long battle defeats the mysterious Ultimate Cube. Yamamoto in his battle manages to push back his enemy and the base is moved again.
S4 · E122The Ultimate Swordsman 2009-02-28 · 25 min
Tsuna's contacts are completed and Tsuna waits for the contacts to adjust. Iris and Gingerbread investigate Spanner and suspect him of harboring Tsuna. Yamamoto ends up in a room of water and faces the strongest soldier of the Millefiore, Genkishi. Genkishi reveals that he faked his defeat against Squalo for the purpose of Milliefiore. Back at the Vongola base, Kyoko and Haru are trying to find the missing Chrome, Lambo, and I-pin.
S4 · E123Teachings of the Sword Emperor 2009-03-07 · 25 min
Yamamoto and Genkishi continue to battle, until Yamamoto's sword appears cracked. He then remembers in the video Squalo sent him of Genkishi, that he mentioned mist illusions have gotten to the point it can trick everyone in the surrounding area and even cameras. Meanwhile, Gingerbread and Iris continue searching for Spanner. Yamamoto realizes that Genkishi created the illusion of his sword being cracked and continues their battle.
S4 · E124Obstructing Mist 2009-03-14 · 25 min
Chrome was revealed to have impersonated a person in the base. Yamamoto is defeated by Genkishi who reveals the room they were fighting in had steel walls covered by the mist causing Yamamoto to run into one of them. Gokudera and Gamma unleash their final attack.
S4 · E125More Intruders 2009-03-21 · 25 min
Gokudera and Gamma finish the battle destroying the battlefield. Meanwhile, Reborn and Tsuna figure out that the circle machine was created by Irie Shouichi for time travel causing them all to be stuck in the future. Iris arrives finding Spanner's hiding place. Genkishi about to deal the final blow to the unconscienced Yamamoto, but is intervened by the arrival of Hibari.
S4 · E126The Strongest versus The Strongest 2009-03-28 · 25 min
Hibari and Genkishi match each other blow for blow. Meanwhile, Iris gives her death squad a power boost. Another squad team is sent to defeat Chrome, but her illusions of Yamamoto, Gokudera and Ryohei defeat the squad. Hibari is about to use his last 3 rings.
S4 · E127A Bewitching Flower 2009-04-04 · 25 min
Hibari use his last 3 rings for Reverse Neddle Sphere. Iris's death squad attacks Tsuna and Tsuna fights back which defeated 2 of 4 of Iris's death squad. Hibari from the past comes to the future.
S4 · E128The Head Prefect Comes 2009-04-11 · 25 min
Genkishi finds the Hibari from ten years past in Hibari's place. Meanwhile, Tsuna is still fighting the Deathstalk squad and is having difficulty due to Iris propagating her squad. Gingerbread also, arrives to aid Iris against Tsuna.
S4 · E129Operation X 2009-04-18 · 25 min
Chrome finds Gokudera in the ruins of the battlefield. Meanwhile, Tsuna continues his battle with Iris and Gingerbread. Spanner completes the contact lenses which then allows Tsuna to use a full powered X-Burner aimed at Gingerbread and Iris.
S4 · E130Resolve and Irritation 2009-04-25 · 25 min
Tsuna defeats Iris and Gingerbread with his X-Burner while destroying three rooms in the process. Meanwhile, Genkishi was about to kill Hibari when the others manage to arrive to Hibari's location and save him. Hibari mentions he's learned how to use the ring from Dino in the past and ignites it. He then uses the flame to release his hedgehog box weapon.
S4 · E131Rampage 2009-05-02 · 25 min
When Hibari opens his original hedgehog box weapon, the hedgehog starts to act drunk from the amount of flames from Hibari's Dying Will given to it. After accidentally poking Hibari's hand, the hedgehog becomes mentally shocked and goes out of control. It rapidly starts to grow, endangering all those around it. Meanwhile, Tsuna heads toward the lab with Spanner in tow.
S4 · E132Final Block Of Defense 2009-05-09 · 25 min
Tsuna flies through Merone Base with a mission to find Shoichi Irie and the white, round device in his laboratory. Irie tries to interfere with Tsuna's movements by moving Merone Base's blocks. With Spanner behind him, Tsuna cannot shake off a homing missile by increasing his speed, but he is saved by Spanner's modified chaff and flame shots. Tsuna is later intercepted by the Phantom Knight, Genkishi.
S4 · E133A Game-Changing Move 2009-05-16 · 25 min
Genkishi engages Tsuna in a battle using his hell ring, an armour and a special sword. Tsuna is at a disadvantage as he does not have much energy left due to firing the X Burner few times before. However, Genkishi wavers when Tsuna's resolute eyes reminds him of Uni. Tsuna then sets up a plan to absorb Genkishi's flames, and he regains his energy. Tsuna gains the upper hand and manages to overpower Genkishi.
S4 · E134Hell Knight 2009-05-23 · 25 min
Genkishi recalls a certain memory of when he had been ordered by Byakuran to annihilate the Giglio Nero Family but was too intimidated by Uni's eyes to do so. Genkishi tries to gain even more power from the ring in order to make up for his blunder and transforms into a skeletal figure, which then shoots out illusions he claims that are linked to the actual guardian souls. However, Tsuna sees through his scheming plots and prepares to fire a full powered X Burner.
S4 · E135Arrival 2009-05-30 · 25 min
Tsuna unleashes a full powered X-Burner and defeats Genkishi. In the wreckage, Tsuna finds Irie Shouichi's white round machine. Irie appears and reveals he's holding all of Tsuna's friend's hostage in a tank. Irie reveals the white round machine holds the older Tsuna and the others. Irie reveals he sent them to the future in order to obtain the Vongola Rings. He demands Tsuna to hand over his Sky Ring or his friends will be killed. The Cervello counts down the time limit for Tsuna to make his decision.
S4 · E136Revealed Truth 2009-06-06 · 25 min
Shouichi tranquilizes the Cervello before they could kill Tsuna's friends. He reveals he is on the Vongola's side, and that all the events that have occurred was a plan devised by Shouichi along with future Tsuna and future Hibari in order to train their past selves to defeat Byakuran. Shouichi reveals that the next step of the plan will depend on the Millefiore base invasion in Italy, which is led by the Varia.
S4 · E137Main Battle in Italy 2009-06-13 · 25 min
The Varia split up into three groups, Squalo, Lussuria with Levi, and Bel with the new illusionist member of Varia named Fran. Squalo meanwhile finds out Xanxus is displeased with his meal and sends injured soldiers to him. He meets some Milliefiore members and defeats them with his Shark box weapon named Grande Pioggia. Bel and Fran run into Milliefiore members and Bel easily disposes of them with his box weapon Storm Mink. Just then, Bel's butler from his childhood, Olgelt, reveals that Bel's older twin brother, Sil is alive. Sil then appears on a flying throne.