After an unknown event, the world has changed forcing people to return to a simpler way of life. We follow the leadership trials of the Varosha Tribe with Eiren, Ares and Thade all in line to lead the next generation of their colony. The three embark on a journey away from the safety of their home towards a remote forest and current leader Nus - who will choose his successor by trial. But when their trial is interrupted by the arrival of another tribe, their courage, friendship and loyalty will be tested in conditions far more dangerous than they expected.

In the future, a strange fungus has changed nearly everyone into thoughtless, flesh-eating monsters. When a scientist and a teacher find a girl who seems to be immune to the fungus, they all begin a journey to save humanity.