Tremors (2003)

S1E6 Hit and Run

Max and Frank, two criminals from Las Vegas, find themselves needing to keep a low profile before their next heist. To pass the time, they travel to Perfection to resolve a heated debate about whether Graboids are real. Their discussions take a deadly turn when they come across El Blanco, who ends up killing Max and swallowing the vital key they need for their planned crime. Now, the only way to retrieve it is to take down El Blanco.