Hedorah, also known as the Smog Monster, is a kaiju monster who first appeared in Toho's 1971 film Godzilla vs. Hedorah. The monster was named for Hedoro, the Japanese word for sludge, slime, vomit or chemical ooze.
Godzilla and his allies and foes face a threat unlike no other: A virus that can turn Kaiju and humans into seemingly mindless, unpredictable, raging zombies. It's a race against time and a journey of survival to find a cure.