Les secrets de Koh-Lanta

Each Challenge pits numerous cast members from past seasons of reality shows against each other, dividing them into two separate teams according to different criteria, such as gender, which show they first appeared on, whether or not they're veterans or rookies on the show, etc. The two teams compete in numerous missions in order to win prizes and advance in the overall game.

Ten master artists turn up the heat in glassblowing sculpture challenges for the chance to win $60,000 in prizes and the title of champion.

Aspiring models compete for a chance to break into the business with a panel of judges critiquing their progress throughout the competition.