As a part of an experiment, Maximum Ride and five other kids (Fang, Iggy, Nudge, Gazzy and Angel- The Flock) are genetically engineered to be 1% bird at The School. As a result of this, they have the ability to fly using the feathered wings which sprout from their backs. As well as being part of a prophecy which foretells that Max must save the world, The Flock are targets for many extremists, most of whom want them dead or to use as living weapons. They believe that they are oddities, freaks, even, and therefore, they cannot trust anyone. When she is on the run from deadly Erasers (who are genetically engineered to be part wolf), how can Max deal with the heavy weight that rests upon her shoulders?