In a world which is believed to be dead, man lives in enormous glass spheres, also known as the Globes. What they don't know, however, is that is it safe to roam the scarred earth once more. The Outsiders, the ones which have escaped the Globes, know this. They chose freedom—at a price. They live in constant fear of murderous wolves and the Authorities of the Globes, which are keen on killing all the Outsiders. But, it's worth it: freedom over dictatorship. Tenna Finley, a curious, headstrong 17-year-old is an Outsider, abandoned by her mother when she was an infant. When her camp gets attacked by the Authorities, she has to find help, and the only person who could has been jerked out of her reach. Tenna has to save her friend. But that also means, that she has to return to that glass prison, which she thought she'd left behind forever...the Globes.