In this week’s Flightless Bird, David Farrier goes to his first Monster Truck Jam to try and understand why Americans love big vehicles so much. There he meets Krysten Anderson, who drives Grave Digger - and tells David what it’s like to be a female driver in a male-dominated sport. David then joins Dax Shepard who explains why Americans like big wheels and big power, before the two of them watch the Monster Jam World Finals go down. Slowly Farrier begins to understand these oversized vehicles, realizing that to become truly American he must love a 12 thousand pound truck.