JoJo and her Mom moved from a big city reef to Bubbletown a small, friendly village beneath the sea.  They arrived just in time for Mother's day.  JoJo is very nervous about meeting new fish. She is afraid she will not make friends in her new home.  Her fears disappear as soon as she meets, Delfi, a little Tang who introduces JoJo to lots of friends living in the reef. All the fish she meets share the perfect gift they found for their mother. JoJo was so worried about making friends she did not think about what to get for her mom! Together, her new friends help JoJo find the perfect gift, making it the best mother's day ever!