Athletes from Korea and five other countries battle for honor on the toughest obstacle course ever created. Suh Kyung-suk and Park Kyung-lim host. Luis Ernesto Franco, Kyeong-rim Park, Sayaka Akimoto, Anderson Silva, Luke Mockridge, Kyung-seok Seo, Ines Sainz, Charissa Thompson, Sylvester Stallone, Yuji Kondo, Rafinha Bastos, Terry Crews, Hans Sarpei Added on Netflix 2017-02-25.