The moment he is born, Ely delights in the welcoming trumpets of his adoring big sister, Enid. She is so excited to play-but Ely's legs are injured and it's hard for him to move. To help keep Ely safe, Enid sticks close to her determined brother as they grow together through the seasons, trunk-twirling, mud-wallowing, and making silly sounds!

But as Ely grows more confident, he's ready for more adventures, and he feels squished by Enid's worries and rules. Enid is glad that he can run and play, but she's nervous he could get hurt-or that he won't need his big sister anymore. When a drought threatens the whole family, Ely shows what he is capable of, and both he and Enid discover that whether they are helping or playing, dusty or muddy, siblings are mighty special.