Liz and her family are at the beach! Liz loves building sand sculptures, so when she sees a flyer for a sand castle competition, of course she enters. She thinks she’s found a new friend when she meets her neighbor Tommy, who is also competing, but Tommy’s not so nice. He teases Liz about the castle she’s building and he laughs when one of the pieces caves in. Then Liz’s castle gets ruined overnight! It’s the day of the contest judging, and Liz no longer has anything to enter. Did Tommy destroy Liz’s sand castle? Plus, Liz finds a baby octopus that needs help! Will she be able to get the octopus back in the ocean and swimming again?