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.

When Mr. Tate's class helps out on Beach Clean-Up Day, Captain Ned teaches the children the importance of the sea and the impact of not keeping it clean.

Cora's sandcastle-building contest is canceled due to litter on the beach, but determined to save her favorite place she, along with a few friends, gets to work picking up single-use plastics that have washed onto shore.

"Mr. King likes pretty things. He also likes machines. So when he discovers a flower that has been nibbled by a caterpillar, he builds himself a Caterpillar-Catcher. Off he zooms--unaware that his machine is filling the sky with smoke and that his friends are calling him to stop! When he finally does, his friends are not happy. But with some imagination, Mr. King figures out a way to green his machine--and the world around him!"--

When Judy Moody gets serious about protecting the environment, her little brother Stink thinks she is overdoing it, but she manages to inspire her third grade class to undertake an award-winning, environment-saving project.

"Centuries ago, the world, Terra, was nearly destroyed by humans. As she recovered, Terra created the Guardians - a group sworn to protect her. But humans have returned to their plundering ways and Terra needs the Guardians. She calls on them only to find they have fractured - their last leader murdered years before. They need a new leader - a new Terra Protectorum - but when a young girl is chosen, outrage ensues. Questions demand answers. Why has...