When Lizzie meets a mischievous young pug named Pugsley while working at her aunt's day care center for dogs, she steps in to train Pugsley so that he can get a good owner.

Lots of little, everyday frustrations make Nina mad, and she is very good at expressing her feelings.

Brother Bear likes to tease his sister, but when he's the one who is taunted at school, he understands why Sister gets so mad.

Gran and Gramps come up with a plan to help selfish Brother and Sister Bear get rid of a bad case of the galloping greedy gimmies.

Horrid Henry causes his brother Perfect Peter all sorts of problems when he behaves properly for a change, upstages Peter at a dance recital, plays pirates, and goes on a camping trip.

Third-grader EllRay is becoming famous for messing up, and when his little sister accidentally kills EllRay's class goldfish, and then he forgets his teacher's read-aloud book at home, it only makes matters worse.

Whether at home getting ready for the day, enjoying the beach, or at bedtime, Olivia is a feisty pig who has too much energy for her own good.

When Posey makes up a funny song about one of the boys in her class, she cannot understand why her teacher is upset with her.

Amelia must continually remind her gorilla friend, Nilson, not to have fits, especially when they are running errands with her mother, but sometimes Amelia stomps and growls, too.

Blossom and Rocky, two sneaky and not very bright sheep, keep trying to get away from the rest of the flock, in spite of the dangers they encounter.