The Season 20 opener introduces the 16 female fighters battling to become the UFC's first strawweight champ. After coaches Anthony Pettis and Gilbert Melendez pick teams for this first all-female season, the fighters move in and the opening bout is held.

Hard training takes its toll on Team Melendez, while the Team Pettis fighters grow frustrated with their coaching. Then, Joanne Calderwood faces Emily Kagan for a spot in the quarterfinals.

Lisa Ellis fights Jessica Penne in the next preliminary fight.

Angela Hill fights Carla Esparza for an opening in the quarterfinals.

Heather Clark fights Felice Herrig.

Aisling Daly looks to move up the competition by beating Angela Magana.

Rose Namajunas locks horns with Alex Chambers.

Final preliminary fight: Bec Rawlings against Tecla Torres.

Controversy ignites again within Team Pettis because several fighters now want to train two sessions per day, not just one as preciously agreed upon. The next morning, Markos decides to attend the morning session, much to the chagrin of Carla Esparza. A confrontation takes place in the van on the way to the gym, but Markos refuses to leave. Once the van arrives at the "TUF" gym, Esparza and Herrig bring the situation to coach Pettis' attention. While he would like to stick to the original agreement of split training sessions, he says MMA is an individual, not team sport, and he can't make any decisions on Markos' behalf.

Aisling Daly gets a surprise visit from Conor McGregor. The fighters visit Harley Davidson boot camp. Then, in the second quarterfinal, #5 ranked Aisling Daly takes on #4 ranked Jessica Penne with the winner advancing to the semi-final.

Tecia Torres fights Carla Esparza then Rose Namajunas battles Joanne Calderwood in the semifinals.

Jessica Penne and Carla Esparza are up next in the semifinal followed by Randa Markos and Rose Namajunas.

The Ultimate Fighter Finale main event in Las Vegas. The UFC's first strawweight champion will be crowned, plus featherweight contenders Jeremy Stephens and Charles Oliveira will square off.