It's the men versus the women in a challenge to recreate four iconic characters from the classic book, "The Wonderful Wizard of Oz."

Contestants arrive at the Long Beach Aquarium of the Pacific and are asked to create sea creature makeups that can stay applied underwater.

Contestants are asked to create art worthy of hip-hop star Asher Roth's album cover, but are surprised to find out they'll be body-painting nude models. GUEST JUDGE: Asher Roth

Contestants receive a startling message in the middle of the night and must face their fears to create unique horror villains. GUEST JUDGE: Tom Savini

Based on dangerous plants and animals, contestants must create a creature that is both beautiful and deadly. GUEST JUDGES: Vivica A. Fox and Being Human's Sam Huntington

The contestants work in teams to complete old age make-ups on twins, but soon discover that their models are really triplets, and so the teams must devise new strategies to finish in time.

The contestants work with a special surprise client in order to create an original alien creature.

Contestants are challenged to create a whimsical character that is worthy of appearing in a Tim Burton film.

Contestants visit the Los Angeles Natural History Museum where they are tasked with creating a human-dinosaur hybrid.