On May 18 of a certain year in the future, a nuclear power plant in a certain country will be sabotaged by terrorists, causing a serious nuclear leak, and millions of people around the world will face death threats.  Zhang Yu, a Chinese anti-nuclear pollution expert, developed the wartime emergency drug WF003 at this time, and prepared to take the drug to the incident site.  However, Zhang Yu was suddenly hijacked by a group of thugs and became a hostage used by the bandit leader "Wolf" in exchange for his arrested accomplices.  In order to maintain world peace and fulfill its internationalist obligations, China dispatched a quick response commando led by "Black Lion" and "Snake" to rescue Zhang Yu.