How big of a problem is plastic pollution? Essential answers are found in this inventive volume which tells the tale of Terry, who received a message from the future from a man claiming to be the last surviving human in a world ravaged by plastic pollution. Young Terry learns why plastic waste became such a serious issue and how to stop such a bleak future from coming true. This lively narrative includes essential concepts from the elementary science curriculum as well as vivid, action-packed supporting photographs.