After suffering a potentially serious injury, one team must backtrack to seek medical attention for a fallen teammate. Lead teams suffer through the river pools above Vuwa Falls, but eventually reach the paddle board section of Leg 4. A veteran team falls from the leaders as one teammate is diagnosed with a severe case of hypothermia, putting their entire race in jeopardy.

Starring:

Bear Grylls , Nathan Fa'avae , Tashi Malik , Adrian Crane , Mark Macy , Travis Macy , Jason Magness , Bob Miller , Sonja Wieck , Dan Abel , Lauren Abel , Sophie Hart , Courtney Home , James Lawrence , Clifton Lyles , Rob Preston , Emma Roca , Marshall Ulrich

Genre:

Adventure, Reality-TV, Sport