In Shock Wave 2, a bomb disposal officer named Poon Shing-Fung seeks revenge on terrorists who caused a tragedy. After waking up from a coma, Poon discovers that he has amnesia and must piece together the events of the past. As he delves deeper into the investigation, he uncovers a conspiracy involving a terror attack and the sale of powerful weapons. Poon must navigate through booby-trapped situations and outsmart his enemies to bring them to justice.
When an undercover cop discovers a plot by a vengeful terrorist to detonate bombs across Hong Kong, he must race against time to stop the disaster and save innocent lives.