Scared of thunder, lightning and being "flopped" by the humans, Pippi the squirrel wants to return to her mama's warm, cozy nest. Instead, she and her siblings stumble on a better nest...in forbidden human territory. The attic nest is too perfect to resist, and soon she is drawn into a dangerous game of teasing the people. When their teasing goes too far and puts their lives in danger, she is forced to abandon the perfect nest. However, she returns in order to rescue her brother. Instead, she becomes trapped inside. With little food and the humans plotting her demise, Pippi must depend on her wits to survive, proving to herself and the world just how brave a little squirrel can be.