Boog, Elliot, and their forest friends return with an all-new adventure, this time in a Big Top Circus! The comedy begins when Boog's pals choose their family obligations over the annual guy's trip, and a disappointed Boog decides to take a trip of his own, which leads him right into the middle of a circus ring...literally. When he switches places with a devious look-a-like circus grizzly and falls for an alluring Russian troupe member, he'll come to realize that maybe you don't have to choose between family and friendship after all.

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.