Rose Red has spent over a decade, isolated, studying the wild magic and creatures in the Everfree forest. Practically a native of the forest, she has carved a place for herself in the dangerous wilderness. However, a purple Pegasus named Thorny Patch drops in and changes everything. His investigation of a mysterious magic source has uncovered a hidden threat that is set to destroy all of Equestria. His mission has brought him to Rose's doorstep, and he's brought very unwelcome company. A creature known only as HER.

As Rose and Thorn try to escape from the clutches of HER minions and the Everfree forest, only Rose's knowledge of the forest and Thorn's Everfree Ranger training stand between the pair and a fate worse than death.