Welcome to Perfection Valley, Nevada—population: small, problems: enormous. Dr. Everett Callahan brings seven college students to the desert expecting geology, field research and a chance to debunk some ridiculous monster stories. Instead, they meet Burt Gummer, Tyler Reed…and something moving beneath their feet.

Graboids are only the beginning. Shriekers, Ass-Blasters, Mixmaster mutations and other impossible creatures call this valley home. Surviving Perfection means learning quickly, trusting the locals and remembering one very important rule: when Daisy says “aww,” RUN. Perfection Valley, Nevada is a tiny isolated desert community where survival is part of everyday life. Beneath its dusty roads and rocky landscape live creatures most of the outside world would dismiss as impossible. Graboids hunt underground by detecting vibrations. Shriekers multiply rapidly and sense heat. Ass-Blasters take the danger into the sky. Stranger threats can appear without warning, especially when the mysterious Mixmaster contaminant begins combining traits from different animals into unpredictable hybrids.

Perfection’s most unusual resident is El Blanco, a rare albino Graboid protected by the government. His presence prevents large-scale development in the valley and ensures Perfection remains isolated. The locals have learned to coexist with the impossible—or at least survive it.

Dr. Everett Callahan, a stubborn geology professor, brings a group of college students to Perfection for a field trip. Everett believes the stories surrounding the valley have been exaggerated into local folklore and intends to show his students that every supposed “monster” has a rational geological or biological explanation.

His students are anything but ordinary. Jade and Lilac arrive with their service dogs, Juniper and Gem. Maze is a cryptid and Graboid nerd who desperately hopes the stories are true. Jace is an athletic jock convinced he can handle himself. Brie is more interested in attention and documenting the trip than desert survival. Milo is a lovable walking accident in a place where making vibrations can get everyone killed. Daisy, a fearless zoology student, sees terrifying creatures and immediately wonders whether she can pet them.

Their introduction to Perfection brings them directly into the orbit of Burt Gummer, the heavily armed survivalist who prepares for every imaginable disaster, and Tyler Reed, the local tour guide who understands that living in Perfection means expecting the unexpected. Everett initially considers Burt paranoid and the students find the town bizarre.

Then the ground moves.

A real Graboid turns Everett’s academic expedition into a fight for survival. The class must quickly learn Perfection’s rules: watch where you step, pay attention to vibrations, get onto solid rock when a Graboid is hunting, listen when the locals warn you, and never assume killing one creature means the danger is over.

As the students become stranded in Perfection, encounters with Graboids, Shriekers and Ass-Blasters force them to work alongside the residents. Some creatures are threats, some are protected, and others behave in ways nobody expects. Gem and Juniper may sense danger before their humans do, while Maze and Daisy become fascinated by creatures everyone else would rather avoid.

Eventually, strange animals begin appearing around the valley with combinations of traits that should never exist together. The evidence points toward Mixmaster. Unlike the familiar Graboid life cycle, there is no reliable survival manual for what Mixmaster might create next.

Perfection was supposed to prove monsters weren’t real.

Instead, the students may leave knowing more about them than they ever wanted.