This week-long event includes race classes for a variety of 4WD vehicles, including the culminating Ultra4 race of the series. Known as the “toughest one-day off-road race on the planet”, King of the Hammers draws crowds upwards of 60,000 people. Tread takes you into the pits and brings its audience a behind the scenes look of KOH from Hammertown to the races and beyond.