Race to the Center of the Earth
Four teams of adventurers embark on a quest to sprint around the world on a challenging course in the hopes of beating the others to a buoy in the middle of the ocean on which is stashed a $1 million prize.
- Seánra: Reality
- Stiúideo: National Geographic
- Eochairfhocal: competition
- Caitheadh: Chris Payne Gilbert