Watch Online Free on Watchseries. Ride of a Lifetime follows Þórgunnur Þórarinsdóttir, a young horsewoman from northern Iceland whose life has always revolved around Icelandic horses. Filmed over five years, the documentary follows her journey from an unknown fifteen-year-old rider in rural Skagafjörður to representing Iceland at the 2025 World Championships for Icelandic Horses in Switzerland with her beloved horse, Djarfur frá Flatatungu.