Polygamy in America used to be known as something practiced solely in Mormon country; a growing crop of unorthodox dating websites puts a new spin on multiple marriage; Lisa meets open-minded singles, couples, and "throuples."

Every year millions flock to Las Vegas trying to fulfill a dream and win big, but outside, and underground, another world stands in stark contrast; Lisa Ling investigates the dark underbelly of Sin City that few get to use.

Lisa takes a revealing look inside the world's most prestigious transgender beauty pageant, an exciting and emotional competition.