Delilah the dolphin gets along great with all the other sea creatures, whether big or small. Still, Delilah’s best friend is a distant relative: the blue whale calf Valdo, who is always helpful, chipper, and active. But then something happens that makes Valdo sadder and sadder with every passing day. It turns out that he’d like to glimpse the Christmas elves who put candy in children’s slippers, if only once. Will Delilah be able to fulfil her best friend’s wish?