Terrific Trucks

Muddy, Muddy! / The Gump Truck (1x20)

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In "Muddy, Muddy," Dug almost wrecks the Terrific Trucks calendar shoot when he doesn't honor his commitment to the team to stay clean. In "The Grump Truck," Sparky takes her competitiveness to a new level, but realizes her attitude might be pushing her friends away.