Discovery's "Man vs. Bear" pits humans against grizzly bears in contests, ranging from games of tug of war to endeavor to roll giant logs. The series features three grizzly bears -- Bart, Honey Bump and Tank -- who were raised by Doug and Lynne Seus on their ranch in Utah. While all three bears have appeared in movies, Bart squared off against Gwendoline Christie's Brienne of Tarth in a memorable Season 3 episode of "Game of Thrones." Each week, the bears take on three new competitors to test the limits of strength, speed and stamina. Sports commentator Brandon Tierney and wildlife expert Casey Anderson provide blow-by-blow commentary as men and women take part in five challenges inspired by what bears do naturally in the wild. In the final round, the top two challengers come face to face with Bart, and the competitor who earns the most points is named champion. Then, at the end of the season, the top three competitors return one more time for a showdown against the bears.