Uma série de reinos lendários funde-se repentinamente num só, mas de união instável, e um Mestre Ninja Spinjitzu tem de treinar uma nova geração de heróis para ajudar a encontrar Dragões Elementares capazes de salvar o planeta antes que as forças do mal o destruam usando essa mesma energia dragontina.

Young Kengo Manaka lives on Mars. As he lives out his peaceful, day-to-day life, the monster Golba suddenly appears, throwing the town into chaos! Meanwhile, Kengo has a fateful meeting with a giant stone statue sleeping deep beneath the ground on Mars. When Kengo becomes one with an Ultra-Ancient light, his destiny is forcefully thrown into motion!

The Malto Family’s world turns upside down when the Terrans, the first Earthborn Transformers robots, spark to life. The Terrans will forge an alliance between the human Malto family and the legendary Autobots, uniting them in a shared mission.

Seven years have passed since Ultraman Trigger protected the world from various threats. In the present, Kanata Asumi, who is a positive young man, peacefully lives together with his grandpa. One day, while delivering ordered food, he witnessed a catastrophe: Spheres from the outer space attack Earth and Mars. Motivated by saving the precious lives of the people, he merges with Ultraman Decker and joins GUTS-Select, in order to protect what's important.