The world has suddenly changed, the 'System' has integrated on Earth. What does this mean? It means that people like our 'hero' Callen, need to learn to abandon the old ways and adapt if they want to continue to survive in this new world.

As disaster strikes with the integration, moments from the end of his shift, Callen forces himself to just accept the world around him has become like a game. The keyword being 'like'. He needs to gain strength to stay alive, but the journey will be covered in blood and gore. Does he have the mental and physical fortitude to do what is necessary? Only time will tell.