Loretta and her twin brother, Waylon, are headed to middle school. Loretta has always been quick with her fists and her wits. Since Waylon is on the small side, Loretta doesn't let anyone mess with him. But now she worries he won't survive without her by his side. Her secret plan: bulk him up with muscle over the summer. Little does she know that Waylon has a plan of his own. He'll show his sister he can take care of himself.

As each puts their strategy in motion, Loretta and Waylon spend the summer going into the woods behind their house, even sneaking there late at night. That's where they first encounter Louie. Louie is homeschooled, he explains, when Loretta gives him the third degree. Loretta, Waylon, and Louie fall into a comfortable friendship and continue their nightly forest adventures. When they unearth a mysterious box, the past collides with the present, propelling the trio on a quest that will forever change their lives.