Nugget is a chicken nugget. Dog is a hot dog. They are friends, and they like ketchup. Their town of Gastropolis is a peaceful place...until a spicy mustard packet named Dijon Mustard tries to make everyone grumpy. Nugget and Dog want to help, so they start a K.E.T.C.H.U.P. club, standing for Kind, Empathetic, Thoughtful, Courageous, Helpful, Unique, and Powerful. Can Nugget and Dog save the day with ketchup and kindness?