Poppy the deer mouse urges her family to move next to a field of corn big enough to feed them all forever, but Mr. Ocax, a terrifying owl, has other ideas.

When their home next to a brook is destroyed by beavers, a large family of golden mice is aided by Poppy the deer mouse and her grumpy porcupine friend, who in the process forges a relationship with the son he had abandoned.

After a long, hard winter in Dimwood forest, Poppy the deer mouse finds new adventure thrust upon her while rescuing Ereth the porcupine from the mud.