Watch The Challenge: World Championship Season HD Full Free on solarmovie.do. Watch The Challenge: World Championship tv series online free. Follow previous winners of The Challenge as they compete to win the $500,000 prize. In the end, only...Follow previous winners of The Challenge as they compete to win the $500,000 prize. In the end, only the most dominant will conquer the game and prove they are not just the best in their home country, but the best in the world."