They work, play and raise their hatchlings without a care in the world. Occasional outbursts from a few Angry Birds ruffle some feathers, but that's what anger-management classes are for, Red-the angriest of them all-hates going to class. He'd rather be alone.
Then a ship of pigs Lands on the island. The birds welcome the fun-loving pigs. But when new ships arrive filled with more of them. Red grows suspicious. Can he channel his anger to uncover the pigs' big plans?