Everyone knows that the stork delivers babies, but where does the stork get the babies? The answer lies up in the stratosphere, where cloud people sculpt babies from clouds and bring them to life.


Gus, a lonely and insecure grey cloud, is a master at creating "dangerous" babies. Crocodiles, porcupines, rams, and more—but Gus' beloved creations are more than a handful for his loyal delivery stork partner, Peck. As Gus' creations become more and more rambunctious, Peck's job gets harder and harder. How will Peck manage to handle both his hazardous cargo and his friend's fiery temperament?


The challenge to make characters from clouds was one of the more daunting technical aspects for director Peter Sohn and his crew. Because a cloud is made up of nothing more than moisture and light, the designers and animators of
"Partly Cloudy" had a difficult time determining what Gus should ultimately look like. Should Gus be more
"wispy and gassy" or ghostlike? They finally settled on a caricatured version of a puffy cloud.