Twelve years ago the economy collapsed and dogs overran the streets. It took two years for the humans to build a great wall surrounding an abandoned city and once it was done the Tartaros Plan was set in motion. For the passed ten years, humans have captured and altered the canines' genetics; giving each one an ability. The altered dogs would then be flung into the great prison, constantly watched by the humans from their security cameras. No one understands why but what is clear the end is drawing near. The scientists are almost finished with their research and soon every dog will need to fight.