Marty and Gerard collect oysters for Squid Sushi's restaurant. On the way to the restaurant, they find that the oysters all have a precious pearl inside them and Sushi buys all of them. But one day when Gerard finds a very big pearl, Squid Sushi says he will trade his entire collection of pearls for it!

President Bob asks Gerard and Marty to be his special investigators. Somebody had been stealing secret chocolate cake and cinnamon bun recipes from the staff cafeteria. Marty and Gerard investigates a waiter named Wally, is acts very suspiciously and find out he lives in a very big and expensive house! Is he the thief?