Storks deliver babies. It's natural... or at least it used to be. Now, they deliver to the corner store. Junior (Andy Samberg), the company's best courier, is about to get a promotion when he accidentally activates the baby factory. As a result, a cute, completely unauthorized baby appears. Desperate to get the baby away before their boss finds out, Junior and his friend Tulip (Katie Crown), the only human on Stork Mountain, embark on their first wild and thrilling baby delivery. More than one family gets to enjoy the experience, and more importantly, the successful completion of this mission will allow storks around the world to return to deliver babies.