Ultraman Z has faced countless harsh battles. He now receives a message from Ultraman Zero. As Z arrives on planet Ialim, he is suddenly bathed in a mysterious light and changed into a new form! Why is he on planet Ialim, and what awaits him there?

Ultraman Z has arrived on planet Ialim. There, he looks back fondly at the achievements of his mentor, Ultraman Zero. But then, a new sphere of light appears! What is it, and why has it appeared in front of him?

Ultraman Z now has the New Generation Ultra Hero Cape, but to wear it, he must first understand the bond between the Ultra Heroes. There's a lot for Ediom to cover regarding the Ultra Heroes' history, but to start things off Z will first revisit and further understand the beginnings of himself.

Z wants to expand his understanding about the other Ultra Heroes, so Ediom presents him with Ultraman X's data. Ultraman X and Zero have a tight bond and have fought together. What will Z learn from their teamwork?