I was so overjoyed to finally see Joy again. Always cheerful and with all her enthusiasm, she is the shining sun in the midst of Anger, Fear, Disgust and Sorrow. And Anxiety. And Embarrassment. And Envy. And Ennui (French for boredom).

Riley turns 13 and the warning light for puberty goes crazy in the operations center. And just a few moments later, the bean-like guys arrive and start making a mess of the place. That's just the way it is with puberty, says one of them, before the builders disappear into the evening, literally leaving chaos in the head.