THE CASE OF THE MISSING CUPCAKES: It's Dennis' birthday party and Callie is making homemade cupcakes with Pete. They leave them out by the window to cool and return to see that someone has stolen them. With the help of Callie, Emma and Sally, they discover who the cupcake thief really is. BEDTIME BLUES: Pete and all of his friends decide to sleepover one night so they have more time to practice playing in their band. Pete's Mom tasks Pete with making sure everyone gets to bed at a reasonable time, but whatever he does he just can't seem to make it happen.