16 of the most talented unsigned mixed martial artists from Australia and the United Kingdom enter the house for the first time. After the fighters get acquainted, two welterweights look to advance to the semi-final of the 2nd international version of The Ultimate Fighter.

UFC heavyweight champion Junior Dos Santos visits the fighters in the house. Tensions rise between the British team and Australian Ben Wall. And two fighters battle it out to become the first lightweight in the semi-finals.

Team Australia retaliate against the UK's poster prank. Colin Fletcher and Ben Wall are persuaded so snort lines of Wasabi and Peri Peri sauce. A UK fighter has difficulty making weight. And two contestants battle it out in the second welterweight fight.

Team Australia are fed up with Team UK's lack of cleanliness. The pranks get out of hand as the teams retaliate against one another for escalating attacks on each other's dressing rooms. Team Australia undertake some outdoors training with a jog on the beach and some uphill sprints. And the second pair of lightweights fight to determine the next semi-finalists.

Team Australia are agitated by the UK team's late night partying. A UK fighter threatens to leave the show. Colin 'The Freak Show' Fletcher entertains his team by wearing a women's bathing suit to training. And the third welterweight semifinalist is decided.

The Australian team is ripped apart when one of their fighters is forced to leave the competition. The UK's Colin 'The Freak Show Fletcher reinvents himself as an Australian. And the winner of the episode's fight becomes the third lightweight semi-finalist.

Penrith's James Vainikoto settles into the house as a replacement for an injured fighter and is told to ready himself to fight at short notice. Team UK takes the mischief to a whole new level, unleashing an all-out food fight. A major falling out between UK teammates occurs. And the fourth welterweight quarterfinal fight.

The welterweight division is shaken up once again. UFC president Dana white is furious with the conduct of some of the fighters which he calls "the worst thing that could possibly happen on the show". And the last semi-finalist is decided in a lightweight fight.

Temperatures rise between coaching staff and teammates. Bad news destroys the dream of one fighter. After 8 dynamic battles, Dana white talks to the fighters, then chooses the semi-final match ups. And the first two fighters get their chance to move into the finale, and move one step closer to becoming The Ultimate Fighter.

Ross Pearson and George Sotiropoulos battle it out in the coaches' challenge, and two teammates fight to decide the first lightweight finalist.

Episode 12 saw both teams plan their tactics for the final fight of the competition between Colin Fletcher (UK) and Richie Vaculik (AUS).

After 12 episodes and 12 fantastic fights, the following bouts will determine the winners of The Ultimate Fighter: Australia vs. UK–The Smashes. The winners will receive an exclusive UFC® contract: • Lightweight Finale - Norman Parke, Team UK vs. Colin Fletcher, Team UK • Welterweight Finale - Brad Scott, Team UK vs. Robert Whittaker, Team Australia In addition to the TUF Finale matchups, the event’s main card will feature the five-round main event between The Ultimate Fighter: Australia vs. UK–The Smashes opposing coaches and bitter rivals Australian George Sotiropoulos and Brit Ross Pearson and an explosive middleweight clash between honorary Aussie and vicious striker Hector Lombard, who faces Brazilian jiu-jitsu black belt Rousimar Palhares. The remaining bouts for UFC® on FX: SOTIROPOULOS vs. PEARSON include: • Former title contender Chad Mendes takes on the debuting Hacran Dias at featherweight • Igor Pokrajac vs.