Mother's Day, a special day for mothers from all walks of life. And for a certain group of friends in Ponyville, it's about to get even more special!

Pinkie Pie is able to convince her friends to get all of their moms together for one great big Mother's Day celebration in Ponyville. And all five moms agree, despite the fact that only one of them is actually native to Ponyville.

However, as the preparations get under way and the big day arrives, there's a particular pony who isn't looking forward to the celebration or Mother's Day in general. It's an unexpected pony with an unusual family situation. Little does she suspect that this Mother's Day will change the way she approaches the holiday.