The world of the Depths is uncertain. Freeze cycles come and go without warning, stretching food and fuel reserves to the brink. People are driven underground in a bid for survival. That is until Richard Vandley, a generational genius, brings the light of certainty by creating a model to predict the Freeze. For the first time, the Depths can plan for the future. He’s lauded as a hero as citizens of the Depths can break out of survival and embrace advancement.

Over a decade later, Detective Chen is called onto the scene of his murder. Despite Vandley’s fame, there is little interest in solving the case. What starts as a normal investigation quickly turns into a fight for survival and the future of the Depths. As those in power and those who aspire to be fight for control, Chen must decide between saving his team or bringing the truth of the world to bear.