The fruit of the Soul Tree was the source of energy for civilization. However, many were blinded by its ultimate power which led to never-ending battles amongst the tribes. Desperate to put an end to these catastrophic wars, the leaders of each tribe finally reached a peace agreement that resulted in a competition. One player from each tribe, equipped with special watches and shields, compete against one another for a chance to win the Materion, the sacred fruit of the Soul Tree. And those brave contestants who strive to succeed in the competition are known as the Running man. There are seven representatives from each tribe in the competition. In different games, they either play against each other, split into teams or work together as one.