The Terrestrial Defense Force forms a Science Guard Party in order to investigate the cause of mysterious phenomena.

Jonias, a new Ultraman from U-40, merges with young Science Garrison member Choichiro Hikari to defend the Earth.

Choichiro Hikari, a member of the monster fighting team Scientific Defense Guard, joins forces with Ultraman Jonias to save Earth from looming danger.

A strange red cloud appears; it begins to rain and the red cloud transforms into a monster and begins a rampage.

Several thousand trees disappear from the forest in a single night; in an underground cave they find Toughgilas.

As people evacuate from a tsunami caused by an earthquake in the Pacific Ocean, a mysterious flying object appears and rains down fire.