挑战极限大冒险 第一季 (2013)

Boundless is an adrenaline-charged documentary series following the adventures of friends/fierce competitors Simon Donato and Paul "Turbo" Trebilcock in their worldwide quest to challenge their limits in some of the most extreme competitive events on Earth From single and multi-day ultra marathons, to open-ocean standup paddling, to multi-day class 3+ kayak races, canyon bike races, and grueling triathlons, the events range from very well known to totally obscure Boundless is a riveting character study of two friends competing amoung themselves and others, revealing all the conflicts they encounter, incredible characters they meet, and set in the unforgettable backdrops of their surroundings.