Tursi, the bottlenose dolphin, Pinni, the sea lion and Mydas, the green sea turtle learn about the value of teamwork and friendship as they deal with the dangerous problem of plastics in the ocean. When one of them becomes entangled in plastic debris, the trio must embark on a journey to find a solution before its too late. On the way, they encounter other ocean creatures whose lives are endangered by plastics in the ocean. Readers learn that each person can save the lives of marine mammals by helping to prevent plastic trash in the ocean. They also learn about the fascinating field of marine...