1x5 - The Scooby-Doo/Dynomutt Hour

The Headless Horseman of Halloween (Scooby-Doo): A Halloween party at the crane manor becomes a mystery when the headless horseman shows up. The Harbor Robber (Dynomutt): Blue Falcon run into Fishface, a fishy villain who plans to blend dry the rich cargoes passing in and out of big city harbor.