Flynn Lavu has great ambition since he was a child, and he wants to be a great inventor and scientist. The first invention of "wear shoes when spraying vertically" made people laugh at it since childhood, but it still failed many times after growing up, such as "flying car" and "mouse bird" Flynn thinks he is a loser, but his mother Fran always encourages his ideals. However, with the death of his mother, he left his father Tim who did not support his invention, hoping to inherit the fishing gear industry. Fu Lin lives in Swallow Waterfall, an island with sardines as its specialty, which is located under the word "big" in the Atlantic Ocean on the map. When the whole world thought sardines were super disgusting, the economy of the town that produced sardines began to decline, and sardines became the only living food on the island.
In order to solve this dilemma, Flynn invented a machine to recombine the structural genes of water molecules into food. The machine needs more electricity. On the opening day of Sardines Park, Flynn went to the town's high-voltage tower to get electricity. A lot of electricity made the machine out of control and destroyed the whole park, and Shanshan Spock, a meteorologist intern from new york, almost lost his job. Flynn was destroyed and the whole town was angry. He went to the port alone in frustration, and happened to meet Shanshan who was disappointed at the same time, and came here to vent his dissatisfaction. Fu Lin fell in love with Shanshan at first sight, and Shanshan was the first person interested in his invention. Shanshan realized that Flynn was the initiator of her embarrassing report. Just as she was about to get furious with Flynn and start complaining, it began to rain in Hamburg.
Flynn's invention finally succeeded, which brought a turning point for the town. Through a machine that transmits information to the troposphere through a transmitter, three meals a day will cook different foods. The greedy mayor wants to be famous for the food that falls from the sky. In cooperation with Fulin, he will develop into a gourmet island and change its name to Chewandswallow. Tim, Fu Lin's father, still wants Fu Lin to inherit the family business, and their relationship is gradually fraying. On the birthday of his son Carl (a policeman in the town), he hopes to bring special food. The next day, the ice cream snow fell on the town, covering the whole town. Flynn saw the love between their father and son and felt even more disappointed in himself.
On the other hand, Fu Lin summoned up the courage to call Shanshan for a date, took Shanshan to his carefully designed jelly house, and confessed her past. Because of her enthusiasm for meteorological science, she was ridiculed and excluded by her peers, and she made up her mind not to wear glasses and be laughed at. Flynn made a hair circle with jelly, helped her put on her glasses, and declared that you were more beautiful as before, and their love story began. The food park is about to open, and visitors from all over the world are invited to participate. Fu lin became a ribbon cutter and happily took his father to the steakhouse to tell him the good news, but his father still didn't support him and went home disappointed. On his way home, Flynn was almost hit by a huge hot dog. When he brought it back, he found that the gene began to mutate and the food gradually became huge. He wanted to stop the machine, but he was persuaded by the mayor.
On the opening day, Shanshan detected the difference with the weather detector, and rushed to the venue to inform fu lin, but fu lin ignored it. Flynn didn't follow the advice when guests from all over the world came to the scene. This is the beginning of the variation of the sky, and the spaghetti tornado attacked with meat balls. In order to solve this disaster, Flynn rushed back to the laboratory to shut down the machine urgently, but was stopped by the mayor, which caused the machine to be damaged out of control. Flynn suffered the biggest failure in his life. Dad Tim brought his science coat to boost Flynn's morale again, built a Skycar II, and decided to go directly to heaven and shut down the machine directly.
After being forgiven by the citizens, Fu Lin went to heaven with the monkey Steve, Shanshan, Shanshan's photographer Manny and the original town's iconic mascot baby Brett to end the disaster. Officer Earle also left with some people who used huge pizza and toast to build food sailboats. The variation of disastrous food weather gradually spread to the whole world. new york was the first to be attacked by a huge doughnut meteor shower, and all countries such as Paris, London and China were spared.
Sneak into the Manchu-Han banquet storm on the second crane and enter the deepest part of the machine. Flynn turned off the flash drive of the system, and the flash drive flew because of the pizza attack, so he contacted Tim, his father with computer problems, to help him transfer files to his mobile phone. At this point, the food avalanche buried the whole town, but at the critical moment, the wrong file was sent, making the last glimmer of hope disappear. Finally, in an irretrievable situation, Flynn took out the glue sprayer he first invented to spray rubber shoes, blocked the hole of the machine, and the food was overloaded and eventually exploded. Fu Lin returned to the ground with the help of mice and birds. Dad Tim borrowed Steve's translator to tell his heart that Fu Lin and Shanshan finally got married, and we worked together to rebuild the world destroyed by food.