When ambitious Edie Cole Iverson and her suspicious new burger franchise start stealing Beach Burger's business, Patty Melton and her irritable sidekick Pierre expand their menu, only to find the island's resident recipe guru, the Tiki Guy, has gone missing! The hunt for the Tiki Guy begins as Patty and Pierre attempt to rebuild their business, cook up all new recipes, track down new ingredients, and create the mythical Great Sauce!