"Desafio Celebridades" is an adventure reality series starring the survival specialists Coronel Leite and Karina Oliani. The show takes 10 celebrities to a two-day adventure, testing them in a wild environment. Coronel Leite, a Brazilian air force rescue expert, and Karina Oliani, an athlete and emergency doctor specialized in remote areas, will alternate in this mission to bring celebrities to their limit.—Discovery Networks