JoJo and Gran Gran discover that Ezra's having a Tyrannosaurus tea party at the museum! But, he doesn't have time to make his special strawberry cake, so JoJo and Gran Gran offer to bake it for him. Their first stop is Jared's shop, but he hasn't had his fruit delivery, so there are no strawberries. However, he does have pineapples in stock. Gran Gran has a plan – they can't make a strawberry cake, but they can make a pineapple upside-down cake. At the tea party, they realise everyone went to Jared's shop for ingredients, and they all used pineapples for the party food. Delicious!