Synopsis：In the chaotic era of the late Qing Dynasty and early Republic of China, the bandit Lei Hu plans to sack Longmen Town. Long Yitiao, chief escort of the Longwei Escort Agency, leads the townspeople in resistance. He first invites various experts to eliminate Lei Hu, but all attempts fail. Determined, Long Yitiao decides to sacrifice himself and take Lei Hu down with him. However, this act unexpectedly allows him to master his family's legendary Thunderbolt Fist, enabling him to kill Lei Hu and restore justice.