In Scooby Doo! and the Spooky Swamp, Scooby-Doo, Shaggy, Daphne, Velma and Fred are on an all-new adventure to uncover the mystery behind a strange .\rbr\rbrIn Scooby Doo! and the Spooky Swamp, Scooby-Doo, Shaggy, Daphne, Velma and Fred are on an all-new adventure to uncover the mystery behind a strange .\rbr\rbrIn Scooby Doo! and the Spooky Swamp, Scooby-Doo, Shaggy, Daphne, Velma and Fred are on an all-new adventure to uncover the mystery behind a strange .\rbr\rbrIn Scooby Doo! and the Spooky Swamp, Scooby-Doo, Shaggy, Daphne, Velma and Fred are on an all-new adventure to uncover the mystery behind a strange .