Ultraman: The Return of the Primordial Light

After a long period of scientific progress, humanity entered the age of space exploration. Meanwhile, dangerous aliens from space and ancient monsters from Earth's past began appearing on the planet with increasing frequency.

Xiao Guang, who came from a dangerous universe by accident, went through a series of events and earned the recognition of the light. He became a Warrior of Light in this era and joined forces with his companions on Earth to face the threats.