Donna takes the mystery out of cooking with these underwater delicacies. Students learn the secrets of creating dishes that range from the simple - Shrimp Roll with Tarragon Mayo - to the Spectacular Scampi Bowl with Corn Broth and Garlic Toast. Classic Crab Cakes get a new twist by adding Shrimp and a Ginger-Lime Dipping Sauce. Gordon also finds uses for limes for his Caipirhina cocktails.