When the animals on the savanna get grumpy, one little girl knows how to help them get some sleep.

A lion cast out from his tribe. An elephant who can read the bones of the dead. A baboon rebelling against his destiny. For generations, the animals of the African plains have followed a single rule: only kill to survive. But when an unthinkable act of betrayal shatters the peace, the fragile balance between predators and prey will rest in the paws of three unlikely heroes.