One of MMA's most infamous figures, Jon "War Machine" Koppenhaver, goes off the deep end in a night of shocking violence that will earn him life in prison. 

UFC Hall of Famer Matt Hughes' legacy is called into question in the wake of a shocking accident that reveals dark truths about his personal life. 

Ronda Rousey was an MMA trailblazer--the UFC's first-ever female star and at one point the highest paid fighter of all time, male or female. So why did she suddenly walk away? 

Dark clouds circle over PRIDE, the most popular MMA promotion in the world, when rival Yakuza gangs collide and shadowy secrets come out into the open. 

Japan's PRIDE Fighting Championships is the biggest and best in the world, but when its president mysteriously commits suicide, questions arise about its ties to organized crime.

When UFC superstar Nick Diaz receives an extraordinary five-year ban for marijuana use, people start to wonder: is the world against Nick Diaz, or is he his own worst enemy?

On the verge of financial ruin, the UFC bets everything on an MMA reality television show. The result gives rise to a juggernaut and helps create the Dana White we know today.

When UFC pioneer Evan Tanner is found dead of heat exposure alone in the California desert, the MMA world wonders what led to his mysterious passing. 

Diego Sanchez, one of the UFC's all-time great fighters, is taken advantage of by a guru who turns his life into a living nightmare. 

Street fighter Kimbo Slice goes from backyard brawling viral sensation to MMA superstar. But after his shocking death, questions arise: was it hype or was he the real deal?