Plot Synopsis

This six-part series counts down the greatest battles to ever transpire inside UFC's Octagon, revealing the iconic performances, shocking upsets and ruthless rivalries that turned athletes into legends. In celebration of UFC's 25th anniversary, UFC 25 GREATEST FIGHTS presents the bouts in their entirety, beginning with the 25th best fight and concluding with the greatest fight of all time. There have been 432 UFC events with more than 4,500 fights total. Which fights are the best ever?