Po izumu stroja, ki ustvarja padavine v obliki hrane in rešitvijo sveta pred nepredvidljivimi stranskimi učinki poblaznele naprave, se mlademu izumitelju Flintu vendarle uresničijo sanje. Genialni znanstvenik Chester ga povabi v svoj laboratorij, ki združuje največje svetovne ume. Kljub začetnim težavam je Flintu zaupana pomembna skrivna naloga vrnitve na domači otok, kjer je Flintov izum ustvaril neverjeten ekosistem žive hrane. Toda s pomočjo prijateljev Flint spozna, da v ozadju njegove naloge tiči neprijetna skrivnost.
After the disastrous food storm in the first film, Flint and his friends are forced to leave the town. Flint accepts the invitation from his idol Chester V to join The Live Corp Company, which has been tasked to clean the island, and where the best inventors in the world create technologies for the betterment of mankind. When Flint discovers that his machine still operates and now creates mutant food beasts like living pickles, hungry tacodiles, shrimpanzees and apple pie-thons, he and his friends must return to save the world.