Watch Online Free on Watchseries. Supercross. The most underappreciated, demanding, dramatic sport on the planet, requiring heart, dedication and determination. This film by two-time Emmy-Winning filmmaker Paul Taublieb, is not a history, but captures the essence of the sport where passion meets commitment, relying on the twin pillars of in-depth interviews combined with cinematic camerawork along with deep archival research, featuring the biggest names of the sport. Narrated by Josh Brolin.