Three years of the first film, the battle between the flightless birds and the cunning green pigs has not ended. It is time for revenge and King Mudbeard, the royalty that leads the piggies is designing a new scheme against the birdies. The reasons? Did you remember how our feathery friends devastated the homeland of the pigs to reclaim their eggs? Now King Mudbeard and his chubby army is ready to strike back. The absurd war between the two groups of enemies, however, has to be urgently stoped. A third player enters the scene. Its name is Zeta, a crazy purple bird with catastrophic plans to provoke a new ice age for the entire planet. In order to save their world, both Birds and Pigs need to make a tough choice and unite forces against the evil mastermind of Zeta.