After their last Unity Quest, the ponies hope that the battle with Opaline will be over soon… unfortunately, the Unity Crystals summon them just as they are starting to relax.

When Opaline is contacted her old ally Burger Beard for a sinister mission, our pony heroes are called into action once again-- this time to the waters of Bikini Bottom, where they meet the lovable SpongeBob SquarePants and all his friends. However, while our pony heroes are making new friends in this underwater world, disaster strikes-- the Krabby Patty secret formula has been taken, and Sparky Sparkeroni has been captured as well to be drained of his dragon fire for Opaline's own gain!

Follow the Mane 6, SpongeBob Squarepants, Plankton and the rest of the Bikini Bottom crew on their daring rescue to retrieve the Krabby Patty formula and Sparky Sparkeroni from the clutches two evil villains through their world and through the surface world above, while also watching them bond with two royal hippogriff sisters who try to navigate through their own story.

Will this story have a happy ending? Or will Opaline and Burger Beard make sure this tale sinks to the depths of Davy Jones' locker?

(Huge shout out to Admiral Producer for helping me, and for letting me use one of his OCs!)

(S1E5 of G5 Adventures)