Poor Sid has outgrown his shell, so he sets off on an adventure to find a new home. However, instead of shells, he discovers that the ocean floor is covered in garbage! Sid tries on everything from a bottle, to a milk carton, to a tin can, but before he can make a decision, he comes across the strangest shell of all: someone's foot! His worry soon turns to surprise when a hand comes down and begins to pick up the trash that is littering his ocean floor. Soon, he can see all the wonderful shells he's used to, and goes about searching for the perfect one to call home! As your children join Sid on his journey to find a new home, they will learn about the effects of pollution on the environment and how they can do their part to keep the ocean clean for the animals who call it home.