S.S.X.

A man called Mr.Richard works with S.S.X.to catch a dangerous gang called the disease, but he leaves the order after his last mission, and he tells his son Jack that he must go to his friend Cain and he will tell him what he should know, then Jack tries to get his revenge from the disease, by the help of its rival gang led by Jason. but of course there will be obstacles and Jack will have to pass them in his way of revenge.