Zone 4 was once the premier fighting capital of the world where it held the famous Free Fighting Championships (FFC), the world's most popular fighting competition formed by the renowned martial arts legend known as Roddy Hart. Over the years, it attracted the fiercest and most dominant fighters from all over the globe, each hungry for blood, fame, and the recognition as the next top fighter in the world.
However, it also attracted some of the most corrupt and evil fighters who were willing to do just about whatever it takes to win. Soon, the FFC ran rampant with drug use, cheating, match-fixing, and gambling, leading to mysterious disappearances and the deaths of some of the world's top fighters.
Zone 4, once a proud destination for fair, unbiased competitive fighting quickly became a district overrun by the most corrupt fighters and gangs. But there are those who are banding together to fight back, to gain back the respected reputation that the district once had, and to restore peace in Zone 4.