Two rival brothers attempt to outwit their meddling Grandmother in order to attend a house party, where the younger brother hopes to lose his virginity. Together, the brothers set out across the barrios to reach an upper-class neighborhood where they are targets for every thug, pimp and troublemaker that stands between them and the promise of a great night. The boys adventure quickly spirals out of control until one of them gets the mythical Blade of Don Juan.