Scrat comes across a time machine and is transported to various times all in pursuit of his beloved acorn.

A baby lamp finds a ball to play with and it's all fun and games until the ball bursts. Just when the elder Luxo thinks his kid will settle down for a bit, Luxo Jr. finds a ball ten times bigger.

One by one, a flock of small birds perches on a telephone wire. Sitting close together has problems enough, and then comes along a large dopey bird that tries to join them. The birds of a feather can't help but make fun of him - and their clique mentality proves embarrassing in the end.

Everyone knows that the stork delivers babies, but where do the storks get the babies from? 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 - Gus's beloved creations are works of art, but more than a handful for his loyal delivery stork partner, Peck. As Gus's 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?