It’s the start of the second year of high school and Sentaro is in the dumps because he’s in a different class from Kaoru and Ritsuko. But when Sen starts to make friends with Seiji, a Beatles fan with music aspirations of his own, Kaoru gets jealous and fears losing Sentaro forever…

The Allied Shinobi Forces’ commando unit engages with the Akatsuki in the first wave of battle.

It’s Mad Scientist Week as another faux-cola potion turns Bossun invisible and then later, Bossun puts on an artificially intelligent “power suit” created by Switch… But the suit soon develops a will of its own!

After walking in on Kikajima changing in the student council room, the mood has become awkward. With Medaka and Akune out, what will these two talk about? Yabaru the artist has called upon Medaka to model for competition piece, but things are never that simple.

Mirim is becoming well known as a powerful warrior, but that hasn’t deterred Yuit and Annelotte from trying to save her. During combat against Mirim, Annelotte transforms into a form capable of withstanding the hyper-vibration armor and a new player enters the battle.

With Taiki unconscious from exhaustion, Zenjirou leads the counterattack against the Bagra Army in his place. Meanwhile Bastemon keeps a constant watch over Taiki, leaving Akari feeling a bit like a third wheel. A dejected Akari is then lured by a vision of her mother in a mirror, which turns out to be the magic of Lilithmon telling Akari she’ll help her return to the human world in exchange for the Lake Zone’s Code Crown. As Akari searches for the Code Crown, Lilithmon awakens a secret weapon to launch her ultimate attack on the castle…

Xros Heart arrives in the Lake Zone, where Taiki saves Knightmon, a Digimon that had fallen into a frozen lake amidst a Bagra Army attack. A grateful Knightmon takes Taiki to the castle to have him made the captain of its knights, but the princess Bastemon has already chosen someone for that position: Taiki’s rival Kiriha! The two of them must join forces in order to turn back the Bagra Army attacking the castle, but the exhaustion of the battle finally gets to Taiki in the end…

Tactimon arrives in the Magma Zone and tells Taiki a shocking story of Dorulumon’s past: he used to be a prodigal warrior in the Bagra Army who conquered many Zones as Tactimon’s right hand man! He calls Dorulumon a traitor, but Taiki still chooses to trust him. They eventually escape from their cage and face AncientVolcamon, who has grown even stronger after absorbing his own allies. Dorulumon and Shoutmon DigiXros to fight him and try to return peace to the Magma Zone for good!

After a rough win, Koga has a renewed vigor to win the tournament, but his next opponent might be his toughest. Yuna has her next match against the water element user, Delphinus Guney and the stage is set to his favor.