Takeshi Hongo is a promising young man with a passion for motorcycle racing. However, his dreams are suddenly ruined when he gets kidnapped by Shocker, the evil secret organization planning to dominate the world. After being remodeled into a cyborg, Takeshi escapes and swears to protect the world from the inhuman monsters.

On Earth, an alien falls from the sky. Taking human form and the name "Sorato", he becomes interested in the "Earthlings" and attempts to understand them. As kaiju continue to appear before him, he transforms into "Ultraman Omega".

A sinister game begins when a group of classmates reunites at their high school reunion, only to uncover a time capsule containing a defaced graduation album—and soon, their peers start dying mysteriously. As two former classmates race to unravel the truth behind the deaths, their own hidden secrets threaten to expose a web of lies, turning every classmate into a suspect in a nonstop suspense-driven mystery: who is the true culprit?

A boy, after tragically losing his mother in an accident, performs a resurrection spell in the hope of reviving her. However, he ends up awakening something evil.

The Riders make their final assault against the ever-growing Jyamato, hoping to discover the secrets of their existence and return peace to the world.