This time the Mariachi plunges headfirst into the dark border underworld when he follows a trail of blood to the last of the infamous Mexican druglords, Bucho, for a showdown.

• 艾尔失去至爱后，深受打击，决定与毕祖决战，并叫同昔日一起弹结他的好友一起应战，怎料在毕祖党羽的埋伏下，反令好友在枪战中死去。接著艾尔便到毕祖的大本营，找他报仇。