The Summer sun celebration is fast approaching and Celestia wants it to be one of the biggest ones yet since her sister has returned and they want to celebrate the occasion.
Meanwhile Discord "King of the pegasi" is at doubts with his Wife Fluttershy "Queen of the pegasi" due to her befriending too many of the Unicorn and Earth pony kinds when she is supposed to be friends with only members of her kind
but discord and his knight Rainbow dash also must restore the balance of love between two ponies by the names of Fancy pants and Lady Rarity after Fancy pants falls for Rarity's friend called Lady Twilight Sparkle who is in love with a lost pegasis by the name of Flash Sentry,
while all this is happening The Apple family with the help of Pinkie Pie and Spike prepare the play that is to be shown at The Summer sun celebration.