Starlight Glimmer, stalwart head mare of the School of Friendship, is being given a birthday party like no other. Pinkie Pie and Applejack are planning a special afternoon for their friend and Sunburst Blaze, her steady boyfriend of some months now, has joined in with the planning to give his betrothed something that she had been denied when she was young, and he intends to set it right. Just what could Starlight's friends have in mind? Read on to find out what.