You are going to Watch What’s New, Scooby-Doo? Episode 39 online free episodes with HQ / high quality. Stream cartoons What’s New, Scooby-Doo? Episode 39 Online Gentlemen, Start Your Monsters! Fred competes in a car race, with the rest of the gang as his pit crew. However, none of them realize that it involves a skeleton racer driving a monster truck.