In June 2004, a 63-ton bulldozer, reinforced with steel and concrete, went on a destructive rampage through Granby, Colorado, leveling businesses and homes for over two hours, causing over $8 million in damages. Despite being equipped with three high-powered firearms, only the driver, Marvin Heemeyer, was killed. The film TREAD delves into the conflicting views on Heemeyer's actions, his motivations, and what led him to this point of desperation.
Tread
A master welder, driven to the brink, secretly equips a bulldozer with 30 tons of reinforced materials and sets out to wreak havoc on those he holds responsible for his troubles.