Jennie strikes once again, and releases all the Key Teeniepings to Earth. Meanwhile, Okeydokeyping, Nanaping, and Trueping, who watched the whole scene, jump into a portal to join them, and fall on Romi herself.
A new dolphin has arrived at the aquarium - a very sick dolphin. Splashping, a mermaid Teenieping who loves water, befriends her. With the help of Romi, Nanaping, Heartsping, Trueping and Okiedokieping, they return the dolphin to the sea.
Jennie strikes again - and tries to destroy Mystic Town and all the Teeniepings, for good. Romi encourages Jennie to be good and caring again. Will her begs turn Jennie nice again - or will Jennie's evil cunning succeed?
