In a future where the sky above a massive city has been sealed for generations, people live their lives beneath an artificial glow and slowly forget what true sunlight once felt like. When a young engineer named Liora discovers a hidden gateway above the city that leads beyond the barrier, she uncovers the truth that the world outside is still alive and waiting. Her discovery sparks a choice for the entire city between remaining in safe darkness or stepping into the unknown light of the real sun.