Lin Xiao, a man who has mastered the "Golden Bell" hard qigong to the final state, is recognized as a "human fortress" in the underground world, invulnerable to weapons, fire and water. He takes on the task of protecting Chen Wei, a genius physicist who invented a revolutionary resonance frequency generator that can disrupt the structure of specific matter. However, Chen Wei's invention attracted the covetous attention of the multinational technology giant "Tianqiong Group", which sent an elite assassin "Scavenger" team equipped with miniaturized resonance weapons to hunt down. The absolute defense that Lin Xiao is proud of has become the primary verification target of Chen Wei's invention. When the sharp edge of technology points at the crystallization of thousand-year martial arts, Lin Xiao must protect Chen Wei while facing the fatal weakness of his own martial arts, and find a way to solve it in escape and confrontation.
