A 12-year-old Kansas orphan turns to the Scarecrow and the Tin Woodman for help during a difficult time. She imagines that things have not gone well in Oz since the Wizard left and that the Scarecrow and the Tin Woodman must travel to Kansas to find Dorothy.
When Jake and his dream girl, Amanda, contract a mysterious zombie virus, they end up on the run from Cass, a teen psychic sent by the government's top-secret Necrotic Control Division to track them down as they search for a cure.
Set amidst a wave of violent animal attacks sweeping across the planet, a young renegade scientist is thrust into a race to unlock the mystery behind this pandemic before time runs out for animals and humans alike.