When little Henry meets his new baby sister Celeste, he can't wait to show her everything he's already learned about being an elephant. But Celeste doesn't seem to be interested in Henry's lessons - she wants to explore and play!

As Celeste's curiosity leads them both away from the herd, the two little elephants find themselves lost and afraid. Can Celeste use what she's learned from her big brother to help get them to safety?