"After the battle of Queen Nerissa, Ruby living her new life as protector of Oceanside and as Connor's girlfriend. Chelsea/Nerissa, who was Ruby's friend turned archenemy, returns to Oceanside and is reunited with Ruby and apologizes for the event At the ball, Ruby accepts her apology and they become friends again, but leaves her family and friends worried about Nerissa's return and the return of friendship with Ruby. Once the mermaids return to the oceans and see their mermaid queen alongside the Krakens and are furious and irritated by their betrayal, they plan an attack to dominate the oceans and the surface of Oceanside. Now Ruby Gillman, her grandmother, her mother and Chelsea/Nerissa will have to join forces to put an end to the mermaid army again.”
