When a new threat emerges that puts both Bird and Pig Island in danger, Red, Chuck, Bomb, and Mighty Eagle recruit Chuck's sister Silver and team up with pigs Leonard, his assistant Courtney, and techpig Garry to forge an unsteady truce and form an unlikely superteam to save their homes.

When an island of happy, flightless birds is visisted by mysterious green pigs, three of the birds try to find out why the pigs are there.

From the over-exuberant parrot Mak to the snack-obsessed tapir Rosie, from the persnickety echidna Epi to the acrobatic pangolin Pango, from the ditzy goat Scrubby to the commonsensical kingfisher Kiki and the always-cool chameleon Carmello, things are larger-than-life on a tropical isle that is pure wild animal paradise. Then Robinson Crusoe, a marooned human, arrives in the midst of a furious storm, and their lives are forever changed by this bewildering...