The vanguards return to their daily lives. The quest system is revived, and the adults have a barbeque as celebration for their efforts. Meanwhile, Chrono heads towards a study session for his ambition to be an astronaut…!

As TRY3 put their feelings into the future during the fight with Gyze, they awaken the power to Dimensional Overstride!

The fate of the two planets, Cray and Earth…… TRY3 is entrusted with the future, and fights Gyze. The ones who come to talk to Chrono and his friends, are them from that day.

The world is swallowed by the void, and faces destruction. The only ones who can stop the corrosion of the void are the vanguards, and their friends around the world…! The final battle between TRY3 and Gyze begins.

The fight with their positions exchanged begins. Kazumi challenges Gyze with all he has to save Kazuma. Kazumi corners Gyze with Shiranui`s new powers, but Gyze...

Chaos Breaker appears and decides to target Aichi and Kai. The "Noa" that Arata and Makoto want to bring back is…

An apostle enters the branch of Vanguard Association in North America to ressurect Gyze completely. Misaki appears as a member of the Defense Team to welcome Darkface, who wants to destroy the facility.

TRY3 heads towards the "Land of Descent" where the Master Swordsman Fides once descended upon. The one waiting for them, is none other than Chrono`s father, Rive Shindou.

Valeos stand in the way of Shion, who infiltrated the headquarters of the apostles. To bring an end to the fate between them, Shion challenges Valeos again.

The units that fought with him, and Kazuma. Chrono feels dejected and powerless upon losing the things important to him, and is challenged to a fight by Kazumi. The result of that fight is…

Chrono is shocked by the sight he sees as he arrives at the abandoned building that Kazuma and Taiyou were fighting in. The fight that Chrono can`t afford to lose begins.

The 3 apostles target Chrono as the strongest "vessel of Gyze". Chaos Breaker unleashes the Zeroth Dragon of Star Gate upon Kazuma and Taiyou, who fight to protect Chrono.

Chrono takes over the fight and deck from Ibuki, who`s on the verge of losing. Ibuki and Chrono face Gastille to protect each others future.

Chrono and the rest organizes a Christmas party with the return of Arata and the others. However, behind the scenes, is a fight between Ibuki and Gastille with their lives on the line.

Kamui and Misaki come to the rescue of Arata and the rest. For his friends, and for the world, Kamui burns with fighting spirit and manliness, and challenges the formidable Gredora to a fight.

Arata and Makoto reunite with Noa after being released from the domination of Chaos Breaker. However, the three of them are attacked by Darkface and Gredora, who are chasing after Chaos Breaker.

Saori ambushes Chrono while he`s under medical care. To protect Chrono, Tokoha stands against the threat of the Zeroth Dragon with a card entrusted to her by the illusion of Miguel!

An illusion stands in the way of the fighters who are fighting to destroy the Relics Generator of the world. What is the view of Chrono, who fights in Relics…?

Kai and Arata searches for the secret base of the Apostles, while Makoto meets up with Kamui and Misaki to sneak into the Apostles` secret research facility. The one who awaits them is the one who became a Diffrider, Wakamizu.

Kazuma and Kazumi searches for a way to rescue Chrono and the rest from Relics. However, Kazuma gets dragged onto an inescapable ship, and fights against Saori, who swore to have his revenge.

Wandering around in Relics, Chrono and the rest encounter the vanguard of an Apostle, Gastille. At the same time, Taiyou battles against Valeos and the Zeroth Dragon on the surface.

Behind the attack on Chrono and the Federation of International Vanguard Association, Shion battles with another assassin, Valeos. Aiming to destroy Fides, Valeos unleashes the power of the taboo dragon, "Zeroth Dragon".

Saori appears at the Federation of International Vanguard Association abruptly. Ibuki stands with Messiah to face the attack of the new Apostle.

With the conclusion of U20, Chrono and the rest return to their daily routines, with no knowledge of the threat of the "Apostles", and Noa returns.