Watch Sierra 914 (2025) Online

Experience Sierra 914 in crisp, high-definition streaming on mofli. After a highly publicized failure to complete a five-Ironman ultra-triathlon, endurance athlete Will Turner sets out on a 914-mile race unlike anything attempted before. Beginning with a 15.6-mile swim in Lake Tahoe, followed by 728 miles of cycling over brutal Sierra mountain passes, and ending with a 170.4-mile run near Mammoth Lakes, Turner battles fatigue, sleep deprivation, and unforgiving weather. With redemption on the line, he must push beyond his limits to conquer what may be the toughest ultra-triathlon ever created.

Whether you are catching up on this cinematic masterpiece for the first time or revisiting favorite scenes, mofli delivers adaptive bitrate playback with zero buffering delays, multi-language subtitle tracks, and crisp digital audio.