A motley crew of visitors, including the eccentric Ms. Flagg with her troupe of bickering high school science students, shows up for a weekend stay at Sammy's Swamp. In its prime, it was the beautiful Lake Shimmer Resort, but that was 30 years ago. Little do the visitors know that they are about to stumble upon a string of mysteries, including a mysterious swamp ghost that appears to scare away the brigade of intruders! Behind door 1-A lies a dark secret from the past, one that Delores, the high-strung housekeeper, and the sinister Keeper of the Desk guard with their lives. Just like Fred from "Scooby-Doo", Justin, one of Ms. Flagg's sharpest students, thinks there's something fishy about Sammy's Swamp and the swamp ghost. When Mrs. Jolly, a newspaper reporter, arrives to snap pictures of the swamp ghost, she finds an old book of legends and reads "The Legend of Sammy's Swamp" to the group. A comic and dramatic tale tainted by greed, betrayal, and even murder comes alive through a series of flashback sequences to reveal the secrets behind the downfall of the Lake Shimmer Resort. Someone among them is behind the swamp ghost, the mysterious moans from room 1-A, the disappearance of the resort's founder, and the unsolved murder. But who? Join the meddling kids, a hobo named Clyde Peterson, a heartbroken Tanner Conners, and a slew of other zany characters from the past to see how each one fits into the surprise ending of the Legend of Sammy's Swamp!!