When the family's drugstore is failing, seventh-grader Lucy uses her problem solving talents to come up with solution that might resuscitate the business, along with helping the environment.

On Green Day, Cam and her classmates discuss ways to protect the environment, but when money collected for the school's new skylights disappears, Cam uses her photographic memory to solve the mystery.

A class field trip to Camp Go Green inspires Hope Roberts to take up environmental causes, but getting busy grown-ups (or her older sister) to pay attention to a middle schooler can be something of a problem, and so is Hope's expectation that everyone will share her enthusiasm; her science club gets her school to add more recycling bins, start a carpooling program and create a garden, but it turns out that saving the world is more complicated than...