'In 2004, Marvin Heemeyer, a welder in Granby, Colorado, spent over a year building a bulldozer that he transformed into a 65-ton armored vehicle equipped with weapons and a camera. He then drove it through the town, destroying buildings and businesses in a fit of rage.'
'The documentary "Tread" tells the story of Heemeyer's life and the events that led up to his rampage. It is a fascinating and disturbing look at a man who was pushed to the brink by bureaucracy and injustice.'