The girls wake up to discover their bed is wet. Blossom, Bubbles, and Buttercup all deny to the incident, but they still wonder who did it. This destroys their confidence. Princess interrupts a battle between the Powerpuff Girls and the Rowdyruff Boys. She tries to join the Rowdyruff Boys but they reject her, so out of pity the girls let Princess become a Powerpuff Girl.