Mysterious aliens and evil monsters that shouldn’t exist are attacking! Zero, Ribut, Taiga, Z (Zett), 80, Max, Mebius, Great, Powered, Grigio, and many more Ultra Heroes fight together to solve this mysterious case, which could end up affecting the whole universe. However, this is only the beginning! A conspiracy is underway – and stories are intersecting. What is the aim of the golden giant working in the shadows?! While connecting to the TV series Ultraman Z as well, a new history of Ultraman begins!

When memories of Ultra Heroes are erased by a mysterious entity, a device called Dimensionizer is sent from the future dimension Ultraman Decker is from. Trying to get memories of the Land of Light residents back, New Generation Heroes remember all their battles and hardships they've gone through.

Sana Haitani (Kasumi Yamaya) is a member of an idol group. She's following the dreams of her now deceased older sister who always wanted to become a top idol. Unfortunately, Sana's idol group is disbanded. She is then kidnapped and taken to an uninhabited island. What awaits for her is a card battle. If she wins in the card battle against other kidnapped idol girls, she can become a top idol. But, if Sana loses ... she will die.