Reborn!, Thunder Strike from Twenty Years Later

Tsuna and his friends come across a boy being attacked by a swordsman.

Dino manages to fend off the swordsman; Tsuna and six others must fight off The Varia.

Tsuna and the other six members, chosen to hold one of the seven half rings, begin to train.

Tsuna is being trained by Reborn, Yamamoto by his father and Hibari by Dino.

Under Reborn's instruction, Tsuna embarks on a search to find the missing Lambo.

A Vongola weapon alteration expert shows up to improve everyone's weapon.

Xanxus realizes that the rings that Squalo had stolen were fakes.

Ryohei is being beaten severely by Lussuria but then Ryohei remembers the reason he became a boxer.

When the battle seems to favor Lussuria, Kyoko and Hana appear and give Ryohei the support he needs.

Just as Leviathan is about to severely injure Lambo, Tsuna stops the match in Hyper Dying Will Mode.

Tsuna's ring is taken from him for his interference in Lambo's fight.

Gokudera fights a losing battle to Belphegor; Gokudera figures out the secret to his trick.

Belphegor reveals his true nature; Gokudera lures Belphegor into the library for a final stand.

The battle for the Ring of Rain between Yamamoto and Squalo is announced.

The battle for the Ring of Rain commences; Yamamoto shows off his new Shigure Souen Style.

Having crushed the Shigure Souen Style before, Squalo becomes confident once more.

On Tsuna's side of the world, he is curious to know who is the Guardian of the Mist.

Tsuna acknowledges Chrome Dokuro as a part of the family and allows her to take part in the duel.

Tsuna experiences flashbacks of Mukuro and how he sacrificed himself for Ken and Chikusa to escape.

Everyone in Tsuna's family is worried about the outcome of the Cloud battle.

Mosca goes on a rampage, going after everyone, friend and foe.

Tsuna opens Gola Mosca to find the body of the 9th who was its power supply.

As Lambo wakes up from his coma, Gokudera recounts what has happened during the Varia arc.

Everyone arrives at Nami Middle to find Tsuna and Xanxus about to fight.

The Battle of the Sky gets started and the strengths of Xanxus and Tsuna are exposed.

All the Guardians have been injected with a poison and rendered unmovable.

Tsuna prepares to use the fruit of his hard training: the Zero Point Breakthrough.

Xanxus is firing relentlessly, leaving no time for Tsuna to execute his attack.

Tsuna and Xanxus have a struggle where Xanxus powers up, which seems to turn the tide of the battle.

As the fight continues, Xanxus tries to break the ice and release his flames.

After the fight, Xanxus is released with the power of the seven rings.

The elite group of Varia are defeated as Tsuna is declared the winner of the sky ring.