Lucas Hardshell, a European Green Crab, is happy and content living among the tide pools of the New England coast. He and his friends Sam Shrimp, Rick Rockfish, and Betty Bluefish love to play games. Their favorite game being hide-and-go-seaweed. One day fate, steps in, and Lucas is taken from his beloved home. Lucas learns all about the adventure of traveling to new places. As Lucas journeys home, he learns some very important lessons and meets new friends.