Shaggy and Scooby are guests on their favorite web series, helping hosts “Builder Billy” and his sister Betty construct an elaborate box fort! But a wood spirit wrecks the set and threatens to ruin everything. Can Mystery Inc. smash the subscribe button and solve the mystery before Billy loses more than some likes?

Written By: Ivan Cohen Terrance Griep Jr. Pencils: Anthony Williams Valerio Chiola Inks: Jeff Albrecht Valerio Chiola Cover By: Valerio Chiola