A 13 year old girl named Cecile lives in an underground city called Metro, where everyone is digging to the center of the planet, except for her. Cecile has a secret life on the surface along with her robotic canine companion.

On a planet called Metro, the citizens of an underground city are digging to the center of the planet, except for a 13 year old girl named Cecile. Instead, Cecile has own secret life above the city, on the surface of the planet, where she goes to again and again to explore along with robotic canine companion.