Blue's Clues Season 4 Episode 9 Mr. Salt and Mrs. Pepper Day Episode Title:Mr. Salt and Mrs. Pepper Day.Episode Description: The finding of a secret lost door gives us the opportunity to talk about things that are inside other things. For example, we play the ""Grocery Game"" with Mr. Salt and Mrs. Pepper. This involves placing various food items on shelves baased on what's inside them. We also get to skidoo into a pull-tab book, where we find many interesting things inside the tabs.