Billy & Mandy's Big Boogey Adventure

Billy (Richard Steven Horvitz) is a happily dim kid who has spent years dragging the Grim Reaper along on his schemes, with his cold-eyed friend Mandy (Grey DeLisle) at his side. Then the Boogey Man has Grim stripped of his powers, rank and title, and sets out to find Horror's Hand and take over the world. Robert Alvarez and Russell Calabrese send the whole crew racing him there, and Grim has to lean on the two kids who spent years wrecking his afterlife.