The Mystery, Inc. team investigates two mysteries. In Hot time in the temple tonight, in Central America, Scooby and the gang encounter ghost spirits of the ancient fire warriors. In Secrets unlimited, while on the set of the reality television series Last Person Standing, a monster attacks, but before the Mystery Inc. gang can do anything, a new group of heroes, Secrets Unlimited, steps in to save the day, and to promote their own mystery-solving television show.

Hot time in in the temple tonight --Secrets unlimited / Jack Briglio, writer ; Roberto Barrios, penciller ; Sabastian Bartolucci, inker ; Heroic Age, colorist ; Travis Lanham, letterer ; Jeanine Schaefer, editor -- Velma's monsters of the world, the Calchona / John Rozum, writer ; Scott Neely, artist ; Heroic Age, colorist ; Travis Lanham, letterer ; Jeanine Schaefer, editor.