8 heavyweights and 8 female featherweights from around the world come to Las Vegas to compete in the first-ever tournament between the biggest fighters in MMA. TUF Smashes winner and current UFC middleweight champion Robert Whittaker, and TUF 17 winner Kelvin Gastelum take the helm as coaches, and the competition kicks off with the first preliminary matchup.

A heavyweight struggles with his conditioning. A mishap at the gym lands a fighter in the dentist chair. Then, two fighters go head to head in the first female featherweight matchup in Ultimate Fighter history.

It's a house divided, as a rift emerges between the American and foreign fighters. A fighter gets help from his entire team during a difficult weight cut. And two more heavyweights face off in the third preliminary fight.

Kelvin Gastelum gets a welcome surprise from one of his longtime coaches. A featherweight struggles to mesh with her team. Then, two featherweights battle for a spot in the semifinals.

After a visit to the house from Kelvin and his coaching staff, Leah debates whether she should switch teams. A motivational trainer helps out one of the teams and puts the fighters through rigorous drills. Then two more heavyweights face off in the fifth preliminary fight.

A featherweight edges closer to switching teams. Kelvin invites his opponent in the TUF 17 final to join his coaching staff. Then, the third featherweight preliminary fight determines the next semifinalist.

Leah finally makes a decision on whether to switch teams. Maurice gets into a heated confrontation with Juan. Then two heavyweights face off in the seventh preliminary fight.

The last featherweight preliminary bout is held. Plus Maurice Greene's excessive drinking becomes a problem at the house; and Dana White announces the semifinal matchups. Middleweights Robert Whittaker and Kelvin Gastelum serve as coaches.

Maurice's drunken tirade causes tension between the teams, and tempts one fighter to quit the competition. The semifinals kick off as two heavyweights enter the Octagon, with a spot in the finale at stake. Robert Whittaker and Kelvin Gastelum coach.

The semifinals continue in the Octagon, with a spot in the finale at stake. Robert Whittaker and Kelvin Gastelum serve as coaches.

Semifinals continue in the Octagon, with a place in the finale at stake. Kelvin Gastelum and Robert Whittaker are the coaches.

Two featherweights prepare for the last fight ever to take place in the Ultimate Fighter gym; a difficult weight cut leads a fighter to break down during practice; an exciting semifinal bout determines who moves on to the live finale.

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