In a time long past, storks were believed to hold a legendary role in bringing new life into the world. They crafted babies in a grand factory and used magical beacons to deliver them to couples in need. However, a rebellious stork named Jasper put an end to this tradition when he defied orders by refusing to deliver a baby he had vowed to protect. By destroying her beacon, he unwittingly left her orphaned. This pivotal moment ignited the ambition of another stork, Hunter, who sought to transform the stork delivery business into a package delivery service, abandoning babies altogether.
Fast forward to the present day, storks are now part of a thriving corporation known as Cornerstore, specializing in package deliveries. Among them is the orphaned baby, Tulip, the only human in a world of storks, who finds herself working as a janitor in the bustling office. On the eve of a significant promotion, Junior, the corporation’s top delivery stork and a clever but solitary figure, is met with a challenge from Hunter: he must eliminate Tulip from the company in order to rise through the ranks. However, upon meeting Tulip, he discovers her genuine kindness and instead decides to relocate her to the long-abandoned baby factory, assigning her the seemingly meaningless task of overseeing mail.
Meanwhile, a lonely boy named Nate Gardner yearns for companionship. With his parents constantly preoccupied with their successful careers in real estate, Nate takes matters into his own hands and writes a heartfelt letter to the storks, requesting a younger sibling. This letter surprisingly reaches Tulip, prompting her to revive the forgotten baby factory. As Junior learns of this unexpected development, he attempts to intervene but accidentally injures himself, resulting in the unintentional creation of a baby. With his career on the line, Junior feels pressured to deliver the baby to its rightful family swiftly and quietly. Unable to fly because of his injury, he must rely on Tulip and her makeshift flying machine to accomplish this mission.
Yet trouble lurks as a suspicious Cornerstore employee, Pigeon Toady, discovers baby powder and starts piecing together the puzzle. Following close behind them is an unexpectedly watchful Jasper, trying to keep the situation under control.
As the journey progresses, it becomes clear that chaos is not far behind. Tulip and Junior face another mishap when their flying machine crashes. Frustrated with the mounting challenges, Junior abandons Tulip to deliver the baby alone on foot. The duo eventually finds themselves captured by a group of wolves. Despite the danger they face, agility prevails in their narrow escape.
On this adventure, an unlikely bond forms between Tulip and Junior. As they grow closer, Junior confesses that the glory of promotion holds little value for him, while Tulip reveals she is motivated by a desire to find her own family. Meanwhile, Pigeon Toady's escalating evidence leads him to reveal their activities to Hunter, who promptly reprograms the delivery beacon to conceal its destination.
Their trials continue as they encounter the Wolf Pack once again in a harbor, but this time, assistance arrives in the form of Jasper, who lifts them to safety. He shares with Tulip that the heartache of giving her up stemmed from wanting to raise her as his child. Over the years, he has been diligently repairing her beacon, and Tulip now holds the final piece essential for it to function. Excited yet conflicted, she approaches the idea of finally finding her family, while hurt strikes Junior as he grapples with the truth that he was meant to let her go.
Devastated, Tulip makes her way to meet her long-lost family, feeling utterly alone and abandoned at Cornerstore. In a twist of fate, Junior attempts his own act of bravery by delivering the baby but ends up captured by Hunter, who aims to reposition the baby into the hands of a crew of villainous penguins. Just when all seems lost, Tulip arrives, prioritizing rescue over reunions. With a clever plan, she disguises herself within a package and they find their way back into the heart of Cornerstore during a jubilant celebration.
As their plan unfolds amidst the festive chaos, they manage to recover the baby but become exposed when it begins to cry. The moment of desperation revives the dormant baby factory, inadvertently generating a flood of newborns. In a frantic attempt to eliminate their troubles, Hunter unleashes havoc to destroy the factory, only to face consequences that lead to the downfall of Cornerstore itself.
In the end, Junior rallies the storks, leading a triumphant return to the ancient tradition of delivering babies. The black cloud of uncertainty lifts as he successfully completes the delivery to the Gardners. The film concludes with Tulip and Junior now united as partners, taking over the baby factory, where Tulip finally meets her family, and Jasper captures this precious reunion in a photograph—all while inviting Junior to share in her family joy.
