The models have to compete in a vertical runway down the side of a building in the pouring rain.

The models get a lesson in chemistry as they pose alongside sexy supermodels Alessandra Ambrossio and Rob Evans in a risque photo shoot.

The models have their balance tested when they have to walk on a spinning runway during a turntable challenge judged by the editor-in-chief of Nylon Magazine, Marvin Scott Jarrett.

Tensions run high when some of the models accuse another of abusing her power in the house. The guys and girls act as fashion correspondents in a challenge led by celebrity blogger Perez Hilton.

The guys play a prank on one of the girls, which throws off her game. At a photoshoot where the models take on the nail art craze, things start to go badly when a few of the models who have become close get distracted after arguing.

After a challenge has the models exploring the streets of Los Angeles in their underwear, one of the guys can't take the pressure and breaks down.

Two of the models get overly confident, but end up booking no runway shows, which shatters their self-confidence.

Clip show recapping the season so far, along with scenes not previously shown.

The models get tested at a commercial shoot to do ridiculous requests with a fake director played by comedian Reggie Watts.

The guys and girls go to Bali, where they have to model swimwear while trying to walk under water and one of the guys suffers a panic attack.

A workout challenge brings out the competitive side of the guys. Later, the guys and girls have to pose while hanging upside down with bats, and one of the models struggles to take a good photo.

The final two models battle it out in a fierce runway show and the pressure is on as the final photo shoot is shot by Tyra herself.