When a playful endling takes control of the farm house, locking Julia, Johnny and Finn inside, it's up to Tabby to save them. But figuring out how to stop this temperamental being, means learning how to win its game.

As Finn searches for home, Johnny, Julia and Tabby try to save an endling who no longer has one. But when Hewes visits someone from Johnny's past, she puts their entire mission at risk.