Shaggy and Scooby-Doo, as hungry as ever, venture into the swamp following a scent. There they meet swamp resident Lila who asks them to recover ingredients to finish her stew. Shaggy and Scooby set off with the gang to solve two mysteries while secretly collecting the ingredients. The ingredients they find vary from chilis to mushrooms.
The first level is an abandoned ghost town called El Muncho where you meet Charles Costington, who owns a manor on Keystone Drive, a grumpy sheriff and twins Emilio and Esteban. The second level is a snowy mountain range called Howling Peaks where you meet Daphne's cousin Anna Blake, Baz Buckley, Dustin (Cranky) Planks and Sergio. The last level is the swamp where you find the swamp monster.