America's Next Top Model — Season 20

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 risqué 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 play a prank on one of the girls, which throws her off her game. At a photo shoot 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.

A challenge requires the models to explore the streets of Los Angeles in their underwear. The pressure becomes too great for one male contestant and he breaks down. At the photo shoot, paint is thrown on the models and many of them feel they are out of their element and fear it will show in their pictures.

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

Behind-the-scenes confessions, flirtations and meltdowns among the guys and girls are revealed in the never-before-seen footage.

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 visit Bali where they must model swim wear while walking under water. The situation causes one guy to suffer a panic attack. At the photo shoot, the models pose with snakes and leopards at a local zoo.

While in Bali, the models embrace the culture during an outdoor photo shoot, where one model in particular has a bad attitude that affects his performance.

The guys and girls have to pose while hanging upside down with bats, and one of the models struggles to take a good photo.

Past contestants come back to assist the final three models and one finalist is upset that the group is not supportive of her.

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