Fifteen years after the King of the Iron Fist Tournament 2, Heihachi Mishima has established the Tekken Force: a paramilitary organization dedicated to the protection of the Mishima Zaibatsu. Using the company's influence, Heihachi is responsible for many events that have ultimately led to world peace. One day, a squadron of Tekken Force soldiers search an ancient temple located in Mexico under the premise of an excavation project. Soon after arriving there, Heihachi learns that they were obliterated by a mysterious and malevolent creature known as Ogre. Heihachi, having captured a brief glimpse of Ogre before its immediate disappearance, seeks to capture Ogre in the hopes of harnessing its immense fighting power for his own personal gain. Soon after, various known martial artists end up dead, attacked, or missing from all over the world, with Ogre behind all of it.
