In the fourth book, The Final Warning, the Flock flies out of a government meeting set up to decide what the government officials think is best for them. Later, they go to Antarctica at Jeb Batchelder and Dr. Valencia Martinez's request, where a team of scientists needs their assistance in studying ocean pollution level. There they fight an international organization led by the Uber Director, who intends to auction off the Flock to corrupt leaders of foreign countries to be used as weapons and/or mercenaries. When Angel, Total, and Akila go after a baby penguin in the midst of a blizzard, they trap themselves inside some type of chasm. Max and Fang begin to worry, and head off to find them. Once they are all together, they are forced to take refuge inside a hole-cave to keep safe because of a monstrous blizzard. In the midst of this, the Uber Director's team finds them and captures them along with Nudge, Gazzy, and Iggy. They are taken to Miami. The Flock defeats the Uber Director in the midst of a hurricane and makes their escape. Meanwhile, Total grows wings of his own and falls in love with Akila, an Alaskan Malamute. Max and Fang kiss a few times, and Max starts to acknowledge her feelings for him even more than before.