When the principal has to be away from school at a conference, Hank's class agrees to take care of the principal's special pet frog, and Hank is chosen to take the frog home for the weekend.

Determined to get her autistic brother into an appropriate therapy program in spite of her stepfather's denial, Lily bonds with a sick dolphin who helps her brother and who Lily considers releasing from captivity.

When Poppy's parents finally let her adopt a puppy from the shelter, Poppy discovers that there is a lot of responsibility and work involved in a puppy, but fortunately her best friend, Millie, is there to help.

When eighth-grader Cameron Boxer creates the Positive Action Group at school he intends it as a diversion to fool his parents, teachers, and sister into letting him continue to concentrate on his video-gaming--but before he knows it other kids are taking it seriously, and soon the boy who never cared about anything becomes the center of everything, whether he likes it or not.