Dalton Gullo

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

The drivers set out to wreck their vehicles in the season's final derby; Scooter shares a meaningful family connection with the event; the Gullos and the Sweats argue over rules.

The Utah drivers face competitors from Wyoming; Ryan agrees to let Katy drive with the men; a fight breaks out during the main event.

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.

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

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.