It's Flurry Heart's 1st birthday! Cadence and Shining Armor have invited all of their friends over to the Crystal Empire to celebrate the crystal princess. However, no party is complete without it's share of wackiness. Flurry Heart is acting strangely, and a series of teenaged party games lead to some confessions and awkward moments.

The real drama comes up when Starlight Glimmer's worst nightmares come true when Queen Chrysalis crashes the party to get revenge on her. Overall, this is a party no pony will ever forget.

Rated T for slight adult humor and a bit of cursing.