I was not surprised that the movie version of this story deviates from the plot of the novel. Firstly, the movie takes it's plot from only the first half of the novel, the part I would argue is less interesting. And it is a significant deviation. More concerning to me is the change in the characters. Their basic personalities and the way they interact with one another in the movie are a far cry from the book. Patterson presents us with this group: Max, the strong but loving leader; Fang, the dark and brooding, secretive protector; Iggy, the playful boy with hidden depths; Nudge, the excitable talkative girl; and Gazzy and Angel, siblings who are the most child-like, the most "normal" in spite of their enhancements. We see their special abilities, but also the bond between them. They are a family, a flock. Closely connected. None of that is present in the movie. The characters are indistinct and do not form a particularly tight knit group. In fact, they fight more than anything. Even their relationship with the School, Jeb, and Ari is altered, and not in a way that strengthens the story. It's not a particularly good representation of a complex series.