Carragher, half-human, half-mountain lion, is a shapeshifter who grew up in the wilderness of the Rocky Mountains. However, his desire to learn about his human side drove him to leave his mountain lion family. During his life with a human foster family, he hid his identity as a "woodwalker". He gradually realized that he could not find his place in human society. It wasn't until a secret woodwalker boarding school discovered him that he felt at home. At Clearwater High School, he finds friends – Holly, a cheeky squirrel, and Brandon, a shy bison. And friends are exactly what Karag needs - because the world of "Woodwalker" is full of secrets and dangers. When Carragher discovers that his mentor – millionaire Andrew Milling – is plotting a secret plot to take revenge on humanity, he must choose his side.