As training continues in preparation for the semifinals, the coaches engage in a prank war; two flyweights take to the octagon to face off in the first semifinal fight.
Four female flyweights compete in the last two quarterfinals; the winners advance to the semifinals and face off against their next opponents.
Lauren Murphy's strained relationship with Coach Alvarez reaches a tipping point; Eddie and Justin go head to head in the coaches challenge; two flyweights face off in the eighth preliminary fight with the last quarterfinal spot on the line.
Dana pays a surprise visit to the house to hang out with the teams; one of the fighters puts together a personalized training regimen that throws off her coaching staff's plans; two flyweights face off in the seventh preliminary fight.
Eddie Alvarez pulls out all the stops to give his team a competitive advantage. A fighter struggles with an old injury. Then, one of the most accomplished fighters in the tournament takes on a young rising star in the sixth preliminary fight.
After losing in the Octagon one of the fighters skips training, causing a rift between her and her coach. Then, two flyweights face off in the fifth preliminary fight.
Two top-seeded teammates discuss the possibility of having to face each other later in the tournament; a fighter shares the story of her lifelong battle with addiction; the fourth preliminary fight.
The teams step away from the TUF gym to train at the new UFC Performance Institute; one of the fighters has an emotional breakdown during practice; it's the third preliminary fight with a spot in the quarterfinals on the line.