In the midst of their concrete and metal city, five best friends discover something they've never seen before - a tiny sprout. Our heroes decide to protect this delicate, unique, colorful little thing - which isn't easy. They don't even know what it is! Run ragged, yet undeterred, these inventive friends keep the sprout safe and discover what it needs to live and thrive. In helping the sprout become a beautiful tree, they bring about a fun change and make a lasting, joyful impact in their world.