The episode begins with Jimmy and Sarah making a cake out of sand in a corner of the playground's sandbox. In the opposite corner, Jonny and Plank observe with binoculars in confusion. Jonny then gets the idea that "if they can make a cake out of dirt, we can make a donut! However, when he tries to take Sarah's toy shovel, the resulting fight over it not only destroys the cake, but knocks Plank into a mud puddle. When Plank swells up, Jonny goes on the offensive, all the while Jimmy is trying unsuccessfully to calm Sarah down. Jimmy breaks into tears while Cat and Dog watch to the fight. Dog barks at a Nasty Dog and jumps over the edge.