Fittest on Earth: A Decade of Fitness

Forty of the world's top athletes battle through 15 events and five grueling days of competition for the title of Fittest on Earth. Who will rise to the top and prove the fittest?

Cast:Justin Bergh , Josh Bridges , Samantha Briggs , Dave Castro , Katrin Tanja Davidsdottir , Brent Fikowski , Mat Fraser , Tommy Marquez , Rory McKernan , Pat Sherwood , Sara Sigmunsdóttir , Ben Smith , Tia-Clair Toomey , Patrick Vellner , Sean Woodland