The last eastern city, Coda, is decimated from famine and disease. The only chance of survival for Lucy and her family is to migrate to Grandeur – ‘City of Prosperity’. However, unknown to them, they find themselves at the mercy of the Cleanse Act, a violent gladiator tournament that removes citizens at random, pitting them against each other in a fight to the death. When the Act calls upon Lucy to shed blood inside the dome, she struggles with hiding a rare genetic gift and capturing the hearts of a broken nation – which may be her only hope at salvation.