Things have always been so peaceful in Thumper's cozy burrow. His parents have always had time to play with him, and never cared when the little bunny wants to do what he does best - thump around on the floor. But all of that changes when Thumper's baby sister is born. Now all Thumper hears from his parents is, "Go play outside, we're busy with the baby." or "Quiet, Thumper! The baby's sleeping." Thumper's little burrow is no fun anymore. Do his parents still love him, or is it time for him to head into the wide world on his own?