When a mermaid princess needs their help protecting her adorable sea goats from being eaten by a greedy kraken, the Princess in Black and her friends come to her rescue, working together to take down the big blue monster.
Greta the goblin princess is bored, but when unicorns Bo and Sunny try to cheer her up by using their powers to make her queen (for a day), they discover just how much trouble a bored -- and spoiled -- goblin princess can cause for everyone around her.