In the arcade version, two nameless brothers are on a mission to rescue their family from an entity known as King Crimson. In the Sega Genesis/Mega Drive version, the main character is Johnny Ford who's a member of an operative group who shuts down drug cartels in South America. After completing his last mission, Johnny returned home only to find it in shambles, and he sees a note in which King Crimson kidnapped his entire family. The reason for the abduction is that Johnny's father, Malcolm Ford, was developing a serum which could help people break their addictions to all narcotics. Since the government is unable to help Johnny, he sets off on his own to rescue his family and destroy King Crimson's empire of evil for good.