Scooby-Doo and the Island Cats

This Idea takes place, right after Scooby-Doo Return to Zombie Island.

Premise
Hours after solving the Movie filming at Moonscar Island, The Mystery inc. gang learn about the Island Cats' origins, unaware of an evil plot at work...

Synopsis
While Mystery Inc. camp out at Moonscar Island, preparing to leave at morning, they have Shaggy and Scooby stand guard for the black cat creature that’s still around. One hour later, Scooby still keeps guard as Shaggy is asleep. then, Scooby spots what He thought was the cat creature, was actually, an orange cat, black cat, and gray cat, all going in the cavern. Scooby wakes Shaggy, and tells Him that He’ll check the cavern. Once inside, He hears voices saying they need a couple more days. Scooby, not sure what the voices were, goes deeper in the caverns and saw only a white cat, brown cat and light brown cat resting on the base of the cat idol. Confused that there was no one else, Scooby heads back to the campsite.

At morning, The gang wakes up and see a group of cats around their campsite, then the six cats, (the three that went in the cave, and the three that were asleep inside) cut through the crowd. The white one motioned Scooby to look at the horizon, and they see a ferry come to the island, and in the ferry, are developers and treasure hunters, led by Mr. Maskatrass, who intends to turn the island into an amusement park. As the developers begin construction, Maskatrass sees Mystery Inc. and calls the police to arrest them for trespassing. Mystery Inc, knowing Mr. Maskatrass won't listen, make a run for it, and head for the chamber, where they hide out until it's quiet again. As night fell, Mystery Inc. heard a male voice, saying that all will be lost if the developers find the chamber and the cat idol inside. Hours later, a curious artist named Erwin locates the Gang, and decides to help them stop the development of the island. just as Erwin goes to get something to get them out, the floor gives way and they fall in another chamber, filled with many cats, including the six cats.

Trivia

 * The Six Cats seen in the Cavern at the end and the beige kitten seen in "Scooby Doo: Return to Zombie Island" get a bigger role.
 * The Song "It's Terror Time Again" is used during the final showdown between Scooby with the Cats and the Culprits, but in an extended mix.

Songs

 * It's Terror Time Again (Extended Version)
 * Clouds of Clowders