Against the Odds: Conor McGregor, Xiong Jingnan, Holly Holm

In this episode we track Conor McGregor's unprecedented rise from plumber's apprentice to the biggest MMA celebrity in the history of the sport, we follow Xiong Jingnan, the first Chinese MMA champion in the world who competes to honour the memory of her grandparents and take a look at how Holly Holm became the only person to hold championship titles in both boxing and MMA.