Individuals with a sunny attitude understand that the ending of one opportunity in life often opens the door for a new one. Carrying big loads of grain is easy for young donkeys, but what happens when they get too old to be of use? One old donkey takes off on a journey of rediscovery, picking up an old dog, cat, and rooster along the way.

The miller Elmo and his son Mort have a problem—instead of standing up for what they know is right, they follow everyone else’s opinions. When a farmer complains that Elmo is overworking the donkey, Elmo and Mort mill the grain. When others complain that his prices are too high, Elmo reduces the price, even if he’s losing money. When a friend suggests Mort steal apples with him, Mort goes along with the plan.

The black, white, and brown bulls are the best of friends. Whenever wild animals come to attack, the bulls are undefeatable because they band together and face their enemies. A clever fox divides them with lies and rumors so he and a lion can have a feast.

To Millie, the whole world is unfair. Even though Millie has a loving family and a nice home, she’s always miserable. She hates to be told what to do, and when things don’t go her way, she complains. Millie finally has enough! She runs away so that she can do whatever she wants to do.