Marking the Generations is a reimagining of the later stages of the Make your Mark series. Follow the adventures of Sunny, Hitch, Izzy, Zipp and Pipp as they make a new friend in Misty and meet two ponies from a past generation.

Twilight Sparkle has always done her best for Equestria. As her reign finally ends, she realises her final decision to safeguard Equestria will have consequences. However, let it not be said that Twilight Sparkle ever left Equestria to its own devices.
Calling on Starlight Glimmer and Sunset Shimmer. She transports them through time to assist the new generation to identify the Elements of Unity and defeat the evil she was unable to alone.

In part three of four, Opaline's plans are kicking up into a higher gear as Sunset Shimmer inexplicably appeared at the door of her castle. Whatever plans Opaline has for her they are surely going to be a Nightmare for her new guest.
Will our heroes find the door to Misty’s Key? Will they find the Dragon Lands to warn the Dragon Lord about the Dragon Stone and help Sparky finally recover? Will they find the Elements of Unity and defeat Opaline?

All are questions that are waiting to be answered within.