When a rain of plastic straws interrupted the lesson in the underwater classroom, the fish students were frightened! Then Mr. Octopus encouraged them to gather the straws and go to the shore to ask for help. On their way, they encountered a seahorse with a cotton swab wrapped around its tail, a turtle tangled in a net, a dolphin that had swallowed garbage, and other little animals that were struggling to swim. They all seemed to be at a loss... There was so much trash in the sea that even the children didn't know what to do... But Mr. Octopus had thought of everything! A book about protecting the planet and the value of cooperation for a common cause.