Happy-go-lucky youth Jing Tian (Hu Ge) is always daydreaming about becoming a hero, although in reality he's just a waiter. He unexpectedly gets pulled into the martial arts world when his town is struck by a mysterious deadly virus that turns people into murderous zombies. Joining the fight against the undead, Jing Tian befriends rich girl Xue Jian (Yang Mi) and Zu Mountain disciple Chang Qing (Wallace Huo), who was sent to help settle the conflict. There are far greater dangers waiting to unfold though when Chong Lou (Jerry Huang), a powerful and mysterious warrior from the dark realm, steals the thousand-year Dark Sword that guards Zu Mountain's Demon Tower. Long Kui (Cecilia Liu), a thousand-year-old spirit locked in the sword, is released into the world, along with other evils that throw heaven and earth out of balance. To seal the Demon Tower again, Jing Tian, Chang Qing, and Xue Jian must find five spirit orbs scattered in the mortal realm. Their quest is marked by dangers at every turn, and shocking revelations about Chong Lou's plans and Jing Tian's true identity.