In the charming town of Harmonyville, where meat and dairy rule the plates, young Billy receives a magical seed from his eccentric grandmother for his birthday.
Following grandma’s instructions, Billy plants the seed on the full moon night, leading to the sprouting of a magical tree with a door to Veggieland.
Billy meets King Pompo, the ruler of Veggieland, who entrusts him with Little Sprout, a tiny green sprout with special powers.
Meanwhile, the wicked crow, Scrawny, learns about Little Sprout and sets out to steal her, wanting to maintain his rule over Harmonyville.
Billy, along with his new veggie friends, embarks on an adventure to protect Little Sprout and show Harmonyville the joy of eating vegetables.
As they journey through challenges and dangers, Billy and his friends learn about the importance of healthy eating and bravery in the face of adversity.
Through their efforts, they manage to defeat Scrawny and convince the townfolk of Harmonyville to include delicious vegetables in their meals, transforming the town into a balanced food paradise.
In the end, Billy is celebrated as a hero, and Little Sprout finds her forever home with him, spreading the joy of vegetables in Harmonyville.