Set in a post-apocalyptic New York, Double Dragon is the story Billy and Jimmy Lee, twin brothers trained in the fighting style of Sou-Setsu-Ken. Together, they managed a small martial arts training school, teaching their students to self-defense. One day, Billy's girlfriend, Marian, is kidnapped off the street by the “Black Warriors”, a savage street gang led by a man named Willy. The Black Warriors demand to the Lee brothers to disclose their martial arts secrets in exchange for Marian's freedom. The Lee brothers set out on a rescue mission to crush the Black Warriors and save Marian.
Double Dragon game never gets too redundant and straightforward, albeit there are only six different types of enemies. The enemies are all common thugs that only have one or two moves apiece, but as you fight more and more of them, you get slight improvisations that make more exciting fights like the aforementioned boxes and weapons to use, spear-thrusting statues and broken bridges with instant-death pools between sides.
Using whatever techniques they have in their disposal, from the basic punches and kicks to the invulnerable elbow strike, as well any weapon that comes into their hands, the Lee brothers must pursue the gang through the city slum, industrial area and the forest before reaching their hideout to confront the big boss, Willy.