Jules has a very important mission at the beach today. She is determined to build the biggest, the fanciest, and the most absolutely excellent sandcastle the world has ever seen. She knows that if she builds the perfect sandy fortress, her older sister will be incredibly impressed. Unfortunately, the ocean has a completely different plan in mind. Every time Jules carefully constructs her beautiful towers and walls, the giant waves come crashing down and smash them into mush. Jules refuses to give up. She builds bigger and fancier castles, but the ocean keeps destroying them. When the greedy water finally sweeps away her favorite bucket, Jules decides she has had enough. It is time to take a stand! Dive into a hilarious and heartwarming story about big sisters, determined builders, and learning to work with the wild ocean waves.