Direct-to-video animated film Studio: Warner Bros. Animation
Shaggy, Scooby, Velma, Daphne, and Fred decide to revisit the infamous Zombie Island for a vacation — hoping for a relaxing trip full of memories. But soon, they discover that the island is once again plagued by cat creatures and zombie sightings. Unlike the 1998 original, this film retcons the supernatural elements, explaining everything through a more traditional "man in a mask" mystery — much to longtime fans' disappointment.
Here’s a quick post-style summary for Scooby-Doo! Return to Zombie Island : Scooby-Doo! Return to Zombie Island (2019)