Watch NJPW Wrestle Kingdom IV (2010) : Full Movie Online Free Wrestle Kingdom IV in Tokyo Dome was a professional wrestling pay-per-view (PPV) event produced by the New Japan Pro-Wrestling (NJPW) promotion, which took place at the Tokyo Dome in Tokyo, Japan on January 4, 2010. It was the 19th January 4 Tokyo Dome Show and the fourth held under the "Wrestle Kingdom" name. The event featured ten matches, five of which were contested for championships.