In a future American city where the government strictly controls emotions, Lena and Jonah accidentally ignite a rebellion after laughter spreads uncontrollably among the citizens. What begins as a small moment of defiance grows into a citywide awakening as people rediscover feelings that had been suppressed for decades. When even the government’s own officers and leader begin to laugh, the system of emotional control collapses and Ashford City finally rediscovers freedom.