Scooby-Doo and his buddies win an all-expense paid trip and embark on a visit of a lifetime to a tropical paradise. Their vacation spot nonetheless, seems to be Zombie Island. As quickly as they arrive, they understand the place appears to be like unusually acquainted and is paying homage to a visit they took years in the past, by which they grew to become wrapped up in a thriller involving zombies. The gang quickly learns that their journey to paradise comes with a value when the zombies re-emerge and assault their lodge. Will Scooby-Doo and the Thriller Inc. gang lastly clear up the thriller behind Zombie Island?