Red, Chuck, Bomb and the rest of their feathered friends are surprised when a green pig suggests that they put aside their differences and unite to fight a common threat. Aggressive birds from an island covered in ice are planning to use an elaborate weapon to destroy the fowl and swine.
On a birthday trip to Mexico, 12-year-old Ronnie Anne accidentally frees a demigod trapped in a mountain and needs her family's help to set things right.
