After defeating his father Kazuya Mishima at the Honmaru temple, Jin Kazama unleashes his Devil form on a stunned Heihachi — then walks away, sparing the old man and abandoning the battlefield. The reprieve is short-lived: Jack robots attack almost immediately, forcing Heihachi and Kazuya to fight side by side before Kazuya abandons his father mid-battle. The temple is obliterated. Heihachi is presumed dead.
From the shadows, an unknown figure watches the destruction unfold. The Mishima Zaibatsu, seemingly leaderless, is seized and stabilized in short order. One month later, the organization announces the King of Iron Fist Tournament 5 — and whatever that figure has planned begins to take shape.