A colorful Mexican town. Two half brothers. Romeo and Preciado meet again to honor their dad's memory in a car rally full of adrenaline and banda music.

It has been twenty years since Don Diego de la Vega fought Spanish oppression in Alta California as the legendary romantic hero, Zorro. Having escaped from prison he transforms troubled bandit Alejandro into his successor, in order to foil the plans of the tyrannical Don Rafael Montero who robbed him of his freedom, his wife and his precious daughter.

Mariachi plunges headfirst into the dark border underworld when he follows a trail of blood to the last of the infamous Mexican drug lords, Bucho, for an action-packed, bullet-riddled showdown. With the help of his best friend and a beautiful bookstore owner, the Mariachi tracks Bucho, takes on his army of desperados, and leaves a trail of blood of his own.