Mark Burnett and Bear Grylls are coming together for a new competition series, and it looks more intense than anything we've ever seen (and anything we will see for a while, given the coronavirus pandemic). hosted by Grylls and produced by Burnett, sees 66 teams from 30 countries race nonstop for 11 days. The contestants will work 24 hours a day across hundreds of miles of rugged Fijian terrain complete with mountains, jungles and oceans. The show was filmed last fall, pre-pandemic.