Doorway Debacle Shaggy and Scooby have to outsmart the Headless Horseman if they're ever going to escape the mansion. Details Casts Videos Galleries Posters Season Lists Title Doorway Debacle Genres Animation Kids Family Comedy Mystery Release Date 2015-08-20 Episode Runtime 00 Hours 01 Minutes Season Number 1 Episode Number 3 Production Companies LEGO, Stoopid Buddy Stoodios LEGO Scooby-Doo! Trailer (Trailer) Original Size (1920x1080) Original Size (680x1000) Season 1 16 Episode(s) 2015-07-29