In a complex and heavily guarded secret facility, a group of special operators originally lived a secluded daily life.However, all this was completely overturned after the "Axe" - the talented and notorious high-risk prisoner - successfully escaped.Not only did he begrudgingly, he also sneaked into the darkness with an unknown but terrifying plan.As his traces spread all over the world, a pursuit of life and death began immediately, and the conspiracy hidden behind this escape was pushing everyone into an irreversible abyss step by step.