Fourteen-year-old Maximum Ride and the other members of the 'flock' - Fang, Iggy, Nudge, Gasman and Angel - are just like ordinary kids - only they have wings and can fly. It seems like a dream come true - except that they're being hunted by half-human, half-wolf 'Erasers' who can fly, too. In Book 3 of the series, the flock members are faced with a new enemy - robots called Flyboys who are stronger than Erasers and have retractable wings. The last thing Max wants is to keep running for her life, but she has to, taking the Flock across the country. There, they meet the sinister scientist Ter-Borsht, who speaks of something called 'Re-Evolution,' and the 'By-Half Plan' - the most frightening human experiment they can imagine - a kind of ethnic cleansing of the entire planet. As fear and tension escalate among the flock members - and a romance starts to form between Max and Fang - they split up, with Max taking the girls to Europe, where they are held captive yet again. The only thing that keeps Max going is that, this time, she might finally meet her mother and father - but she still has to save the world.