Two years have elapsed since the Mishima Zaibatsu held the third King of the Iron Fists Tournament. After the defeat of the demon Orge´s true manifestation, Heihachi desired to fuse his genes with Orge´s in an attempt to fulfill his insatiable need for physical power. His attempts were unsuccessful. After much research Heihachi learned that the mysterious Devil gene possessed by his long deceased son, Kazuya, was the key to the evil strength he so desperately sought. Learning that Kazuya´s corpse was being held at the biotech firm known as the G-Corporation, Heihachi sent in his Tekken Force team to retrieve the body. The operation went quickly awry as the Tekken Force was violently disabled by a figure with uncanny resemblance to the son he murdered 20 years prior. But, Heiachi soon learns that it is Kazuya. Now, with the resurrected Kazuya hungry for revenge, Heiachi is forced to once again host a King of the Iron First tournament. The world´s most powerful business empire is up for grabs and the most skilled fighters from across the globe are all more than ready to claim it. Let the strongest fighter win.
