Jimmy and Billy are reunited after being seperated at birth. Billy decides to open up a marital arts school, to teach local kids. Billy is attacked by the shadow boss, who turns out to be his brother.
Jimmy captures his brother Billy and takes him to the Shadow Master. The Shadow Master orders Jimmy to lock his brother up and before Jimmy can do so, the Shadow Master turns on him. Jimmy sets his brother free and the two transform and escape from the Shadow Master. Jimmy is now one of the good guys.
The double dragons must help the mistress of Chi break free of his control.
The Shadow Master has come up with a plan to introduce a new drug to Metro City, called Oblivion. The double dragons, along with Colonel McReady, blow up the drug tanks and foil the Shadow Master's plan.
The Shadow boss attempts to alter the city's water supply.
Billy confronts Jimmy about the methods he uses to take down the bad guys.
The Shadow Master tries to resurrect an evil force, that he hopes will defeat the Double Dragons.
Jimmy must help Billy face off against the people he once called his friends, once and for all.
The Shadow Master puts a bounty on the Double Dragons and now they are being hunted by every crook in the city.
The shadow master starts pumping metro city full of hand held plasma guns and plans to seize control in the city in the chaos that follows.
The Shadow Master sets out to steal the matter from the heart of each citizens in the city.
The Double Dragons get transported to an unknown place and now have to find their way back.
The shadow master tries to steal the dragon eye, in order to crush the double dragon's.
Shadow Khan is sent after the Double Dragon's by the Shadow Master, in order to prove his loyalty.
A group called Shadow Claw are formed and are out for themselves, they won't take orders from Shadow Master. Now the Double Dragon's must stop them.
The Shadow Master transfers the Double Dragon's into a virtual reality game, where virtual soon becomes reality.
Shadow Master has told the city when doomsday will come and it's up to the Double Dragon's to stop it.
The Double Dragon's face off against a group of super charged highway thugs.
The Double Dragon's enter into the deadly underground fight clubs.
The Shadow Master steals a sword and hopes that he can unleash an evil spirit from within.
The Double Dragon's are tricked and end up in one of the Shadow Master's traps.
The Double Dragons must try to stop the Shadow Master once in for all, in order to gain total freedom from him.
The Shadow Master ressurects the ancient dragon lords.
After thinking they have finally defeated Shadow Master, the double dragons are surprised to learn that he has returned.
The double dragons come across an old foe in the undertown.
The shadow master devolves a new addictive drug that gives its users supper strength.
