Welcome to the Underworld — a land of monsters and mutants who eat humans for breakfast.

One such monster — a hulking ogre by the name of Roy — has no interest in eating humans. But one day, he and his best friend Golan stumble upon a lost little girl named Meg, and discover something truly terrifying: the moment she starts wailing in fear, a blood-red hue washes over the sky, and the earth itself begins to tremble and quake.

That’s right: this small girl’s tears hold the power to bring forth the apocalypse — and the only way to stop it is for them to help find her mother so she can make it safely back home.