Bear Grylls Previews 'Hardcore' Series 'World's Toughest Race'

The new reality series "World's Toughest Race: Eco-Challenge Fiji" is hosted by arguably the world's toughest man, Bear Grylls.

While catching up with ET Canada's Sangita Patel, Grylls shares how the competition pushes contestants to their limits, both physically and emotionally.