Hard-hitting demolition derby drivers overcome numerous obstacles to compete in one of Utah's highest-paying events.

The Sweat brothers clash in demolition derby action; a driver rolls his car, sending another participant off the field in an ambulance.

The Mountain Guys argue with the Cityidiots over vehicle rules; another driver is sent to the hospital.

Father-and-son duo Johnny and Dalton Gullo hope to drive together in the main event; disqualified drivers Ryan and Katy Sweat argue with derby officials; Lazenby takes a major risk when he ignores his doctor's orders.

Mont Sweat endures a tough losing season; Lazenby watches out for a derby newcomer; the Gullos are called out for team driving.

An ill-fated camping trip awaits Gumby and his fiancee; Lazenby blacks out after he pushes himself too hard; Katy argues with Ryan about driving with men.