The ponies are practicing their synchronized swimming routine the day before the competition. Teddy shows up, taunts them, and ruins their session. Sweetheart's birthday party will be taking place after the competition on Lancer's parent's yacht. The next day at the competition, Teddy dresses up as a sea monster and ruins the ponies' routine, disqualifying them. Furious, the ponies refuse to attend Sweetheart's birthday
