After not holding a Leyenda de Plata tournament in 2003, it returned in 2004 with the qualifying cibernetico being held on July 16, 2004. the teams were: "A", Alan Stone, Atlantis, Averno, Mephisto, Misterioso, Jr., Satánico, Tarzan Boy and Virus. Team "B", Black Warrior, Perro Aguayo, Jr., Emilio Charles, Jr., Másacara Mágica, Místico, Negro Casas, Super Crazy and Volador, Jr.. The main storyline of the cibernetico was the building rivalry between Negro Casas and the recently rudo-turned Perro Aguayo, Jr. Aguayo cheated to eliminate Negro Casas and along with Atlantis were the last two surviving wrestlers. On July 23, 2004 Aguayo and Atlantis wrestled in a singles match, which unlike previous years was a "best of three falls" match, that actually went to four falls before Perro Aguayo, Jr