The trilogy continues as the Resistance investigates Chi-Alpha's claim of the new threat; the Under-dwellers. They are shocked at what they find in the underground labyrinth, as the possibility of betrayal becomes greater with every step. Choices must be made in where their allegiance lies when shocking truths are uncovered. Meanwhile, things are rapidly becoming more unstable in Fiore. The new Master President Theta-Alpha is proving to be more unstable than her father ever was. Riots threaten to break out as traditions are over turned and innocents are executed in the streets. It becomes more likely that there will be no city to return to and the extinction of the human race is fast approaching. If all you wanted was to survive, how far would you go?