Sea Sea, Can't Catch Me

S1 E6: Wanda, Alien and Wanda's family are at the beach. They play in the waves and then build sandcastles, decorating them with shells. Wanda's brothers and sisters steal the shells so Wanda and Alien go on the hunt for some more. They cant find enough before the tide starts to come in, threatening to destroy their castle. Alien freezes the tide with his magic. This saves the castle but all the creatures in a tidal pool are now desperate for water. Alien unfreezes the water just in time. As a thank you the sea creatures give Wanda and Alien a beautiful shell, which a hermit crab places at the top of the castle.