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.
After Nurses George and A.J. of the Shady Oaks Retirement Village witness Carl leaving with his house towed by balloons, other senior citizens around the city are inspired to make their own "escapes", much to George and A.J.'s chagrin.
When a clock lands on Mater's engine, he travels back in time to 1909 where he meets Stanley, an ambitious young car on his way to California. With the help of Lightning McQueen, Mater alters history by convincing Stanley to stay and build Radiator Springs