Scooby-Doo and the Island Cats

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

Premise
Returning to Moonscar Island, The Mystery inc. gang learn about the Island Cats' origins, unaware of an evil plot at work...

Synopsis
On a case in New Orleans, Mystery Inc. with the unexpected help of a cat, they named "Trip", has just busted a criminal (disguised as a mutated rat) smuggling printing plates in industrial barrels. As the police took the criminal to jail, The gang arrives at the Jean Lafitte Historical Park, unaware that Trip has hitched a ride in the Mystery Machine. as night fell, and everyone is asleep wearing earmuffs and earplugs, a silhouette enters the van and drives with Scooby and the gang inside to who knows where, as Trip hides.

The next morning, the gang wake up, and find themselves in a marshy place. While the gang goes exploring, Scooby spots four people, composed of Joseph, a quirky artist, Celeste, a florist from a small town with Sorrow, a female Scottish Fold cat, Melissa, a no-nonsense animal activist and a young 8-year-old prodigy named Edwin. Soon, the gang realize they're in Moonscar Island, when they saw the Moonscar Island marquee.

Noticing that there are no other cats to be seen in the marshes, the gang (and the four people) go inside Moonscar Mansion, and spot six cats (The same six cats that dug Moonscar's treasure, now with collars and licenses) who run off, as Trip goes after them. At nighttime, while the others rest up for the night, Scooby-Doo is looking up at the night sky, wandering the island, unknowingly followed by a few cats who go after the great dane. After Scooby noticed that the cats were following Him, He goes faster, Then, while running to get away, He accidentally bumps into two silhouetted figures wearing Black cloaks, who were putting some cats in cages as one hides in the cave. The two figures fled after being spotted, as Scooby cautiously freed the caged cats, including Trip, and the beige kitten who startled Him in the previous incident, thinking that He’d be attacked. But the cats purred around the bewildered Great Dane as Trip explored the cave, but is told to leave by a few voices inside.

Returning to the mansion with the cats, Scooby and Trip spot one of the Six cats (A Brown one wearing a blue collar) coming out of its hiding place, and approaches Edwin who softly scratches the cat's head. Erwin reads the license and the cat's name is Bunna. Scooby, however, knowing that the two figures would come back, tells the others about the cloaked beings. At morning, as the gang checked the Entire island for clues, another potential buyer, and farm mogul, Mrs. P. L. Atinum arrives at the island, looking to turn the island into a place for gardeners to live and work. As Scooby watched what’s going on, He and Shaggy hear a scratching sound and they see a light brown cat (wearing a green collar) asleep. Scooby looks at the license and learn that Anoichto is the name of the cat, who ran off to avoid being seen by the other humans.

While Mystery Inc. continue checking for clues, they, without being seen, spot Joseph with Notepads and Celeste taking pictures of the felines. thinking the two are up to something suspicious, The gang go to check, as a gray cat (with a Red collar) climbs on Scooby’s back. At a beach, before the gray cat gets off Scooby reads the cat's license which says Nekri, and hides in an old tree alongside Anoichto, who is His mate. soon, a group of straycatchers arrive, coming to capture any stray cats in the area, despite Melissa telling the stray catchers to leave.

As things get bad, One of the cloaked beings capture Scooby, and try to take Him away, but Trip with Anoichto and Nekri's help, cause Him to trip into a sinkhole. The being calls for help, as the other cloaked being helps Him get out seconds before anyone else arrived. Later, at night, Scooby sees an animal shelter worker exploring and search for any cats hiding in the island. Scooby with Trip then go to the cavern, and quietly follow an Orange cat (wearing a Violet Collar and named "Tuqaliu') inside, where they see some Egyptian writing, and the other five collared cats. Scooby and Trip leave to avoid being seen, but Trip accidentally trips on a rock, and the two ran off as the cats went after them. Scooby manages to shake them. Trip almost got caught, but hid in Celeste's room.

Moments later, a cloaked being infiltrates the mansion as violet fog goes inside and quietly captures the cats one by one. Scooby sneaks off to warn the gang about the catnapper. However, the fog causes him to fall asleep, as well. At dawn, Scooby wakes up to find the place empty. Scooby then spots the cloaked catnappers going on a black submarine, with hundreds of cats in cages. Then a cat creature (from the previous incident) attacks the catnappers, But, is caught in a cage as the catnappers take the cat idol from the cavern as well, to be auctioned off.

Scooby goes to warn the rest of Mystery Inc. but they are captured, as well along with Melissa, Joseph and Celeste. In despair, Scooby wanders the island and find Trip, crying at the beach. then, They encounter the six cats (Who began to age) and Erwin, who explained to them that Mystery Inc. and the rest of the cats were captured along with the cat idol. The cats after hearing this, try to find a way to bring the idol back. He and the other cats use a big wood board as a makeshift boat. As Scooby along with Edwin, help row to the mainland.

As night was nearing, Erwin explained to Scooby that the reason, He ran away from home was that after His Father went missing, Erwin's elder brother bullied him and treated him like a criminal. So, a few weeks after suffering such treatment, Erwin ran away to get back at his brother, hiding at the Jean Lafitte park, then, drove the Mystery Machine to a remote place, namely Moonscar Island. before Scooby and the others reach the mainland, Scooby says that He'll help Erwin someway. Arriving at the mainland, Edwin and the white cat named Abyad (Wearing a Black Collar) go to contact the police as Mavro, a black cat wearing a white collar, leads Scooby and the other cats to search for the catnappers' whereabouts. Meanwhile, While imprisoned in the black cloaked beings' hideout, Mystery Inc. sees one catnapper bring the idol and the cats in cages as a person in a trench jacket, and gives money to the catnappers. Soon, Scooby, and the five cats who are now elderly, bust in and free the hostages, along with the cat creature, after being freed, chase the culprits, scaring them into the hands of the police, who arrest them and the buyer, as the Cat Creature take the six cats and Erwin back to the island.

The culprits as it turned out were two of the Animal Shelter workers, who are in fact, Sanura and Horace, whom Mr. Atinum recognized as workers He fired two years ago, because the two had falsified records, and are really leaders of a catnapping gang, intent on smuggling cats from all over the world, selling rare-breed ones to the highest bidder, and planting the other cats in businesses, so that the Health Department would shut down the businesses, so Sanura and Horace can buy them at cheaper prices. Joseph, who is in fact, an undercover agent for ASPCA, arrests the thieves, as Melissa starts to become interested in Him. Scooby and the gang offer to take the kidnapped cats and the idol back to Moonscar Island, on the ferry which they all board, as Celeste notices Her Cat sorrow getting acquainted with the stray, which She names Gutsy.

After arriving back, the gang along with Celeste's help, put the idol back to its pedestal, with that, the six cats regained their youth, as Abyad and the other cats walk toward the idol, and like magic, the cats levitate with their eyes glowing and explain through telepathy, that the six cats were once mortal cats trying to escape the cruelty of the Salem Witch Trials, headed for a safe place, and after swimming to an island, they made it their home. The cats Had many kittens and lived in peace. Years later, a group of people visit the island, and made it their home. the people then sculpted a cat Idol, said to protect the island’s denizens and cats. At midnight, the six cats who were about to die from old age, slept near it, and like magic, the cats became young again at dawn. the settlers were not aware of that power. But, decades later, Morgan Moonscar attacks the island and unintentionally started the terror of the were-cats. The cats who saw the tragedy, decided to band together to face the terror of the Were-Cats, but the six cats couldn’t leave the island since they could lose their immortality if they were out of the idol’s range, or if the idol was removed from the pedestal, so the six cats and their descendants had to hide for over 200 years, until Mystery Inc. came to Moonscar Island. with the Were-cats’ demise, the cats lived in peace again.

As for the cat creature, The gang spot him asleep. the cats explained through telekinesis, that the cat creature was once a normal human, whose friends were victims of the were-cats, and the person mad with grief, became possessed by the idol's spirit, which robbed the person of His sanity, then, the cat creature returned to normal as the spirit returned to the idol. Mrs. Atinum recognizes the person as Her husband, Edward.

As the gang exit the cave, they see the island lush and beautiful, thanks to the idol's magic. Mrs. Atinum and Erwin, after reuniting with Edward. decided to leave the island as is as Edward said to Erwin, that He'll be a better father. The Atinums offer to take Mystery Inc to the mainland. As Trip gets on the ferry, Celeste spots Him as Sorrow nuzzles the bewildered cat, as Celeste offers to give Trip a home. Scooby said his goodbyes to the the six cats as a big group of cats give a good send off to the gang. as Scooby, Mystery Inc, and the Atinums leave, The six cats look into the future, seeing peace between cats and dogs.

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