SpongeBob Meets the Ghoulish Guys

SpongeBob Meets the Ghoulish Guys is a 2003 American animated film. It is produced by Nickelodeon as part of the Nickelodeon Superstars 10 series. It is released in October 20, 2003.

Plot:
When Mr. Krabs learns that he's inherited a mansion from his recently deceased uncle, he with SpongeBob, Patrick, Squidward, Gary, and Pearl head out to find it. However, trouble with ghosts, an escaped ape and a gun-toting huckster prompt them to call on ghost exterminators to help them "get rid of the ghosts" haunting them as they search for Mr. Krabs's inheritance, hidden in his uncle's mansion.

Synopsis:
Mr. Krabs inherits a southern mansion from his recently departed Uncle Therold. No sooner do he, SpongeBob, Patrick, Squidward, Gary, and Pearl arrive at the plantation than they find it is haunted by his ghost.

Squidward suggests they call ghost exterminators, and they end up hiring the Ghoulish Guys: Carl, Quincy, Ronald, and Hans. When Mr. Krabs asks them how can they be ghost exterminators when they themselves are ghosts, one of the gang replies "It takes one to know one, you know!". However, the Ghoulish Guys prove to be inept ghost catchers and often find themselves in the way of Mr. Krabs and they.

While trying to eliminate the ghosts from his new residence, Mr. Krabs discovers that his uncle has hidden a fortune in diamonds in various places throughout the plantation, with a clue to each location for how to find the next. Thus, he, SpongeBob, Patrick, Squidward, Gary, and Pearl begin a treasure hunt, while attempting to avoid and/or rid themselves of the Horrifying Skeleton, who is also after the diamonds.

Other obstacles Mr. Krabs, SpongeBob, Patrick, Squidward, Gary, and Pearl encounter include Sgt. Dude Samson, an escaped gorilla, and Amanda Koehler, who has a crush on Mr. Krabs, much to her gun-toting brother Donny's disapproval.

Eventually, they catch one of the ghosts and find the treasure. The villain is unmasked as the sheriff when another sheriff arrives. The real Dude arrests the imposter and reveals him to be his twin brother Jay. Mr. Krabs is so taken by the Ghoulish Guys's story that they need a home to haunt, that he turns the mansion over to them and the treasure is put into the Therold Trust Fund for Orphans.

Saying their goodbyes, Mr. Krabs, and they drive back home. Along the way, they encounter another ghost resembling Therold, which Mr. Krabs thinks is another prank of SpongeBob's, until he realizes it's real and speeds away as fast as possible.