The story tells the story of an accidental leak of a laboratory drug that wreaked havoc on the world ten years ago, leading to the rapid spread of an emerging disease and the emergence of mysterious hybrids - babies born half-human, half-animal.

With the emergence of epidemics, hybrid people were naturally considered to be virus carriers, and they were hunted in large numbers.

After living in the isolated forest for ten years, an antlered boy named Gus (Christian Convery) embarks on an extraordinary adventure across the United States in search of answers - about Gus' origins, JeppeThe past of virtue, and the true meaning of home.

But their story is filled with unexpected allies and enemies, and Gus soon learns that the lush, dangerous world beyond the woods is more complicated than he imagined.